986457 has 8 divisors (see below), whose sum is σ = 1350976. Its totient is φ = 639792.

The previous prime is 986437. The next prime is 986471. The reversal of 986457 is 754689.

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

It is not a de Polignac number, because 986457 - 2¹⁰ = 985433 is a prime.

It is a Duffinian number.

986457 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 986457.

It is not an unprimeable number, because it can be changed into a prime (986417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4333 + ... + 4554.

It is an arithmetic number, because the mean of its divisors is an integer number (168872).

2⁹⁸⁶⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

986457 is a deficient number, since it is larger than the sum of its proper divisors (364519).

986457 is a wasteful number, since it uses less digits than its factorization.

986457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8927.

The product of its digits is 60480, while the sum is 39.

The square root of 986457 is about 993.2054168197. The cubic root of 986457 is about 99.5465132732.

It can be divided in two parts, 98 and 6457, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 986457 in words is "nine hundred eighty-six thousand, four hundred fifty-seven".