387225684 has 30 divisors (see below), whose sum is σ = 1012285274. Its totient is φ = 129075120.

The previous prime is 387225679. The next prime is 387225731. The reversal of 387225684 is 486522783.

387225684 is a `hidden beast` number, since 3 + 87 + 2 + 2 + 568 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 250335684 + 136890000 = 15822^2 + 11700^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 597247 + ... + 597894.

Almost surely, 2^387225684 is an apocalyptic number.

It is an amenable number.

387225684 is an abundant number, since it is smaller than the sum of its proper divisors (625059590).

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

387225684 is a wasteful number, since it uses less digits than its factorization.

387225684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195157 (or 1195146 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 387225684 is about 19678.0508181070. The cubic root of 387225684 is about 728.8777928562.

The spelling of 387225684 in words is "three hundred eighty-seven million, two hundred twenty-five thousand, six hundred eighty-four".