387457892 has 12 divisors (see below), whose sum is σ = 678372156. Its totient is φ = 193637280.

The previous prime is 387457879. The next prime is 387457921. The reversal of 387457892 is 298754783.

It can be written as a sum of positive squares in 2 ways, for example, as 278756416 + 108701476 = 16696^2 + 10426^2 .

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, 12923 + ... + 30690.

It is an arithmetic number, because the mean of its divisors is an integer number (56531013).

Almost surely, 2^387457892 is an apocalyptic number.

It is an amenable number.

387457892 is a deficient number, since it is larger than the sum of its proper divisors (290914264).

387457892 is a wasteful number, since it uses less digits than its factorization.

387457892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45838 (or 45836 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The square root of 387457892 is about 19683.9501117027. The cubic root of 387457892 is about 729.0234593595.

The spelling of 387457892 in words is "three hundred eighty-seven million, four hundred fifty-seven thousand, eight hundred ninety-two".