387616616 has 8 divisors (see below), whose sum is σ = 726781170. Its totient is φ = 193808304.

The previous prime is 387616601. The next prime is 387616633. The reversal of 387616616 is 616616783.

It can be written as a sum of positive squares in only one way, i.e., 365956900 + 21659716 = 19130^2 + 4654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24226031 + ... + 24226046.

Almost surely, 2^387616616 is an apocalyptic number.

It is an amenable number.

387616616 is a deficient number, since it is larger than the sum of its proper divisors (339164554).

387616616 is a wasteful number, since it uses less digits than its factorization.

387616616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48452083 (or 48452079 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 387616616 is about 19687.9815115720. The cubic root of 387616616 is about 729.1229950980.

The spelling of 387616616 in words is "three hundred eighty-seven million, six hundred sixteen thousand, six hundred sixteen".