928430831 has 4 divisors (see below), whose sum is σ = 940183200. Its totient is φ = 916678464.

The previous prime is 928430821. The next prime is 928430849. The reversal of 928430831 is 138034829.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138034829 = 19 ⋅7264991.

It is a cyclic number.

It is not a de Polignac number, because 928430831 - 2¹⁰ = 928429807 is a prime.

It is a super-2 number, since 2×928430831² = 1723967615902701122, 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 (928430821) 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, 5876066 + ... + 5876223.

It is an arithmetic number, because the mean of its divisors is an integer number (235045800).

Almost surely, 2^928430831 is an apocalyptic number.

928430831 is a deficient number, since it is larger than the sum of its proper divisors (11752369).

928430831 is a wasteful number, since it uses less digits than its factorization.

928430831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11752368.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 928430831 is about 30470.1629631349. The cubic root of 928430831 is about 975.5507144318.

The spelling of 928430831 in words is "nine hundred twenty-eight million, four hundred thirty thousand, eight hundred thirty-one".