985431292 has 12 divisors (see below), whose sum is σ = 1725481240. Its totient is φ = 492436656.

The previous prime is 985431253. The next prime is 985431319. The reversal of 985431292 is 292134589.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61698 + ... + 76009.

Almost surely, 2^985431292 is an apocalyptic number.

It is an amenable number.

985431292 is a deficient number, since it is larger than the sum of its proper divisors (740049948).

985431292 is a wasteful number, since it uses less digits than its factorization.

985431292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139500 (or 139498 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 985431292 is about 31391.5799538666. The cubic root of 985431292 is about 995.1199882234.

The spelling of 985431292 in words is "nine hundred eighty-five million, four hundred thirty-one thousand, two hundred ninety-two".