99992564 has 12 divisors (see below), whose sum is σ = 199985184. Its totient is φ = 42853944.

The previous prime is 99992539. The next prime is 99992617. The reversal of 99992564 is 46529999.

99992564 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 1785554 + ... + 1785609.

It is an arithmetic number, because the mean of its divisors is an integer number (16665432).

Almost surely, 2^99992564 is an apocalyptic number.

It is an amenable number.

99992564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99992564 is a wasteful number, since it uses less digits than its factorization.

99992564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571174 (or 3571172 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 53.

The square root of 99992564 is about 9999.6281930880. The cubic root of 99992564 is about 464.1473781246.

The spelling of 99992564 in words is "ninety-nine million, nine hundred ninety-two thousand, five hundred sixty-four".