387630925 has 24 divisors (see below), whose sum is σ = 525903840. Its totient is φ = 281083200.

The previous prime is 387630911. The next prime is 387630931. The reversal of 387630925 is 529036783.

It is a de Polignac number, because none of the positive numbers 2^k-387630925 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100686 + ... + 104464.

It is an arithmetic number, because the mean of its divisors is an integer number (21912660).

Almost surely, 2^387630925 is an apocalyptic number.

It is an amenable number.

387630925 is a deficient number, since it is larger than the sum of its proper divisors (138272915).

387630925 is a wasteful number, since it uses less digits than its factorization.

387630925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173 (or 4168 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 387630925 is about 19688.3449025051. The cubic root of 387630925 is about 729.1319669292.

The spelling of 387630925 in words is "three hundred eighty-seven million, six hundred thirty thousand, nine hundred twenty-five".