427790864 has 20 divisors (see below), whose sum is σ = 835375104. Its totient is φ = 212210208.

The previous prime is 427790837. The next prime is 427790911. The reversal of 427790864 is 468097724.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103232 + ... + 107295.

Almost surely, 2^427790864 is an apocalyptic number.

It is an amenable number.

427790864 is a deficient number, since it is larger than the sum of its proper divisors (407584240).

427790864 is a wasteful number, since it uses less digits than its factorization.

427790864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210662 (or 210656 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 427790864 is about 20683.1057629167. The cubic root of 427790864 is about 753.4894371120.

The spelling of 427790864 in words is "four hundred twenty-seven million, seven hundred ninety thousand, eight hundred sixty-four".