387553902 has 8 divisors (see below), whose sum is σ = 775107816. Its totient is φ = 129184632.

The previous prime is 387553819. The next prime is 387553927. The reversal of 387553902 is 209355783.

It is a sphenic number, since it is the product of 3 distinct primes.

387553902 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 32296153 + ... + 32296164.

It is an arithmetic number, because the mean of its divisors is an integer number (96888477).

Almost surely, 2^387553902 is an apocalyptic number.

387553902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

387553902 is a wasteful number, since it uses less digits than its factorization.

387553902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64592322.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 387553902 is about 19686.3887495904. The cubic root of 387553902 is about 729.0836704286.

The spelling of 387553902 in words is "three hundred eighty-seven million, five hundred fifty-three thousand, nine hundred two".