387998488 has 8 divisors (see below), whose sum is σ = 727497180. Its totient is φ = 193999240.

The previous prime is 387998483. The next prime is 387998519. The reversal of 387998488 is 884899783.

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

It is a super-2 number, since 2×387998488² = 301085653380572288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387998483) 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 as a sum of consecutive naturals, namely, 24249898 + ... + 24249913.

Almost surely, 2^387998488 is an apocalyptic number.

It is an amenable number.

387998488 is a deficient number, since it is larger than the sum of its proper divisors (339498692).

387998488 is a wasteful number, since it uses less digits than its factorization.

387998488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48499817 (or 48499813 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 64.

The square root of 387998488 is about 19697.6772234698. The cubic root of 387998488 is about 729.3623555553.

The spelling of 387998488 in words is "three hundred eighty-seven million, nine hundred ninety-eight thousand, four hundred eighty-eight".