99999632 has 20 divisors (see below), whose sum is σ = 195563376. Its totient is φ = 49531680.

The previous prime is 99999623. The next prime is 99999643. The reversal of 99999632 is 23699999.

It is a nialpdrome in base 10.

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, 27494 + ... + 30917.

Almost surely, 2^99999632 is an apocalyptic number.

It is an amenable number.

99999632 is a deficient number, since it is larger than the sum of its proper divisors (95563744).

99999632 is a wasteful number, since it uses less digits than its factorization.

99999632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58526 (or 58520 counting only the distinct ones).

The product of its digits is 2125764, while the sum is 56.

The square root of 99999632 is about 9999.9815999831. The cubic root of 99999632 is about 464.1583139923.

The spelling of 99999632 in words is "ninety-nine million, nine hundred ninety-nine thousand, six hundred thirty-two".