99646994 has 32 divisors (see below), whose sum is σ = 161796096. Its totient is φ = 45904320.

The previous prime is 99646969. The next prime is 99647021. The reversal of 99646994 is 49964699.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215924 + ... + 216384.

It is an arithmetic number, because the mean of its divisors is an integer number (5056128).

Almost surely, 2^99646994 is an apocalyptic number.

99646994 is a deficient number, since it is larger than the sum of its proper divisors (62149102).

99646994 is a wasteful number, since it uses less digits than its factorization.

99646994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650.

The product of its digits is 3779136, while the sum is 56.

The square root of 99646994 is about 9982.3340957914. The cubic root of 99646994 is about 463.6120698582.

The spelling of 99646994 in words is "ninety-nine million, six hundred forty-six thousand, nine hundred ninety-four".