427370931 has 32 divisors (see below), whose sum is σ = 684057920. Its totient is φ = 262144512.

The previous prime is 427370927. The next prime is 427370989. The reversal of 427370931 is 139073724.

It is not a de Polignac number, because 427370931 - 2² = 427370927 is a prime.

It is a super-2 number, since 2×427370931² = 365291825327613522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427370131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116481 + ... + 120093.

It is an arithmetic number, because the mean of its divisors is an integer number (21376810).

Almost surely, 2^427370931 is an apocalyptic number.

427370931 is a deficient number, since it is larger than the sum of its proper divisors (256686989).

427370931 is a wasteful number, since it uses less digits than its factorization.

427370931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972 (or 3966 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 427370931 is about 20672.9516760428. The cubic root of 427370931 is about 753.2428067315.

The spelling of 427370931 in words is "four hundred twenty-seven million, three hundred seventy thousand, nine hundred thirty-one".