982916257 has 4 divisors (see below), whose sum is σ = 983060100. Its totient is φ = 982772416.

The previous prime is 982916237. The next prime is 982916269. The reversal of 982916257 is 752619289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 752619289 = 1061 ⋅709349.

It can be written as a sum of positive squares in 2 ways, for example, as 521482896 + 461433361 = 22836^2 + 21481^2 .

It is a cyclic number.

It is not a de Polignac number, because 982916257 - 2¹¹ = 982914209 is a prime.

It is a super-2 number, since 2×982916257² = 1932248736549780098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a deceptive number, since it divides R_982916256.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 982916257.

It is not an unprimeable number, because it can be changed into a prime (982916237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61132 + ... + 75517.

It is an arithmetic number, because the mean of its divisors is an integer number (245765025).

Almost surely, 2^982916257 is an apocalyptic number.

It is an amenable number.

982916257 is a deficient number, since it is larger than the sum of its proper divisors (143843).

982916257 is a wasteful number, since it uses less digits than its factorization.

982916257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143842.

The product of its digits is 544320, while the sum is 49.

The square root of 982916257 is about 31351.4952912935. The cubic root of 982916257 is about 994.2726794219.

The spelling of 982916257 in words is "nine hundred eighty-two million, nine hundred sixteen thousand, two hundred fifty-seven".