387712328 has 16 divisors (see below), whose sum is σ = 765222000. Its totient is φ = 183653136.

The previous prime is 387712321. The next prime is 387712333. The reversal of 387712328 is 823217783.

It is not an unprimeable number, because it can be changed into a prime (387712321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275218 + ... + 1275521.

It is an arithmetic number, because the mean of its divisors is an integer number (47826375).

Almost surely, 2^387712328 is an apocalyptic number.

387712328 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

387712328 is a deficient number, since it is larger than the sum of its proper divisors (377509672).

387712328 is a wasteful number, since it uses less digits than its factorization.

387712328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550764 (or 2550760 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 387712328 is about 19690.4120830418. The cubic root of 387712328 is about 729.1830029116.

The spelling of 387712328 in words is "three hundred eighty-seven million, seven hundred twelve thousand, three hundred twenty-eight".