527991664 has 20 divisors (see below), whose sum is σ = 1023823360. Its totient is φ = 263779200.

The previous prime is 527991643. The next prime is 527991679. The reversal of 527991664 is 466199725.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7564 + ... + 33364.

It is an arithmetic number, because the mean of its divisors is an integer number (51191168).

Almost surely, 2^527991664 is an apocalyptic number.

It is an amenable number.

527991664 is a deficient number, since it is larger than the sum of its proper divisors (495831696).

527991664 is a wasteful number, since it uses less digits than its factorization.

527991664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27088 (or 27082 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 527991664 is about 22978.0691965187. The cubic root of 527991664 is about 808.2437505949.

The spelling of 527991664 in words is "five hundred twenty-seven million, nine hundred ninety-one thousand, six hundred sixty-four".