990376564 has 24 divisors (see below), whose sum is σ = 1794240000. Its totient is φ = 477761760.

The previous prime is 990376553. The next prime is 990376579. The reversal of 990376564 is 465673099.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229749 + ... + 234019.

It is an arithmetic number, because the mean of its divisors is an integer number (74760000).

Almost surely, 2^990376564 is an apocalyptic number.

It is an amenable number.

990376564 is a deficient number, since it is larger than the sum of its proper divisors (803863436).

990376564 is a wasteful number, since it uses less digits than its factorization.

990376564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303 (or 6301 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 49.

The square root of 990376564 is about 31470.2488709575. The cubic root of 990376564 is about 996.7818425724.

The spelling of 990376564 in words is "nine hundred ninety million, three hundred seventy-six thousand, five hundred sixty-four".