386788866 has 16 divisors (see below), whose sum is σ = 774007488. Its totient is φ = 128858000.

The previous prime is 386788841. The next prime is 386788889. The reversal of 386788866 is 668887683.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5550 + ... + 28361.

It is an arithmetic number, because the mean of its divisors is an integer number (48375468).

Almost surely, 2^386788866 is an apocalyptic number.

386788866 is an abundant number, since it is smaller than the sum of its proper divisors (387218622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

386788866 is a wasteful number, since it uses less digits than its factorization.

386788866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35817.

The product of its digits is 18579456, while the sum is 60.

The square root of 386788866 is about 19666.9485686011. The cubic root of 386788866 is about 728.6036144731.

The spelling of 386788866 in words is "three hundred eighty-six million, seven hundred eighty-eight thousand, eight hundred sixty-six".