92728431 has 6 divisors (see below), whose sum is σ = 133941080. Its totient is φ = 61818948.

The previous prime is 92728397. The next prime is 92728451. The reversal of 92728431 is 13482729.

It is not a de Polignac number, because 92728431 - 2⁶ = 92728367 is a prime.

It is a super-2 number, since 2×92728431² = 17197123831443522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92728451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5151571 + ... + 5151588.

Almost surely, 2^92728431 is an apocalyptic number.

92728431 is a deficient number, since it is larger than the sum of its proper divisors (41212649).

92728431 is a wasteful number, since it uses less digits than its factorization.

92728431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303165 (or 10303162 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 92728431 is about 9629.5602703343. The cubic root of 92728431 is about 452.6240612998.

The spelling of 92728431 in words is "ninety-two million, seven hundred twenty-eight thousand, four hundred thirty-one".