387133688 has 16 divisors (see below), whose sum is σ = 727937280. Its totient is φ = 193017088.

The previous prime is 387133679. The next prime is 387133697. The reversal of 387133688 is 886331783.

It is an interprime number because it is at equal distance from previous prime (387133679) and next prime (387133697).

It is a congruent number.

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, 65720 + ... + 71367.

It is an arithmetic number, because the mean of its divisors is an integer number (45496080).

Almost surely, 2^387133688 is an apocalyptic number.

It is an amenable number.

387133688 is a deficient number, since it is larger than the sum of its proper divisors (340803592).

387133688 is a wasteful number, since it uses less digits than its factorization.

387133688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137446 (or 137442 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 387133688 is about 19675.7131509890. The cubic root of 387133688 is about 728.8200666989.

The spelling of 387133688 in words is "three hundred eighty-seven million, one hundred thirty-three thousand, six hundred eighty-eight".