84425931 has 12 divisors (see below), whose sum is σ = 126154080. Its totient is φ = 54342960.

The previous prime is 84425923. The next prime is 84425941. The reversal of 84425931 is 13952448.

It is not a de Polignac number, because 84425931 - 2³ = 84425923 is a prime.

It is a super-2 number, since 2×84425931² = 14255475650433522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84425941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161475 + ... + 161996.

It is an arithmetic number, because the mean of its divisors is an integer number (10512840).

Almost surely, 2^84425931 is an apocalyptic number.

84425931 is a deficient number, since it is larger than the sum of its proper divisors (41728149).

84425931 is a wasteful number, since it uses less digits than its factorization.

84425931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323506 (or 323503 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 84425931 is about 9188.3584496906. The cubic root of 84425931 is about 438.6908937351.

The spelling of 84425931 in words is "eighty-four million, four hundred twenty-five thousand, nine hundred thirty-one".