928481931 has 24 divisors (see below), whose sum is σ = 1471566096. Its totient is φ = 560589120.

The previous prime is 928481923. The next prime is 928481969. The reversal of 928481931 is 139184829.

It is not a de Polignac number, because 928481931 - 2³ = 928481923 is a prime.

It is a super-2 number, since 2×928481931² = 1724157392386977522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (928481131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68665 + ... + 81066.

It is an arithmetic number, because the mean of its divisors is an integer number (61315254).

Almost surely, 2^928481931 is an apocalyptic number.

928481931 is a deficient number, since it is larger than the sum of its proper divisors (543084165).

928481931 is a wasteful number, since it uses less digits than its factorization.

928481931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149803 (or 149800 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 928481931 is about 30471.0014768140. The cubic root of 928481931 is about 975.5686119155.

The spelling of 928481931 in words is "nine hundred twenty-eight million, four hundred eighty-one thousand, nine hundred thirty-one".