387997132 has 6 divisors (see below), whose sum is σ = 678994988. Its totient is φ = 193998564.

The previous prime is 387997123. The next prime is 387997151. The reversal of 387997132 is 231799783.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48499638 + ... + 48499645.

Almost surely, 2^387997132 is an apocalyptic number.

It is an amenable number.

387997132 is a deficient number, since it is larger than the sum of its proper divisors (290997856).

387997132 is a wasteful number, since it uses less digits than its factorization.

387997132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96999287 (or 96999285 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 387997132 is about 19697.6428031376. The cubic root of 387997132 is about 729.3615058814.

It can be divided in two parts, 387997 and 132, that added together give a square (388129 = 623²).

The spelling of 387997132 in words is "three hundred eighty-seven million, nine hundred ninety-seven thousand, one hundred thirty-two".