982313261 has 8 divisors (see below), whose sum is σ = 1040458680. Its totient is φ = 924208128.

The previous prime is 982313251. The next prime is 982313273. The reversal of 982313261 is 162313289.

It can be written as a sum of positive squares in 4 ways, for example, as 307300900 + 675012361 = 17530^2 + 25981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-982313261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982313231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50645 + ... + 67301.

It is an arithmetic number, because the mean of its divisors is an integer number (130057335).

Almost surely, 2^982313261 is an apocalyptic number.

It is an amenable number.

982313261 is a deficient number, since it is larger than the sum of its proper divisors (58145419).

982313261 is a wasteful number, since it uses less digits than its factorization.

982313261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20143.

The product of its digits is 15552, while the sum is 35.

The square root of 982313261 is about 31341.8771135361. The cubic root of 982313261 is about 994.0693168642.

The spelling of 982313261 in words is "nine hundred eighty-two million, three hundred thirteen thousand, two hundred sixty-one".