99694564 has 6 divisors (see below), whose sum is σ = 174465494. Its totient is φ = 49847280.

The previous prime is 99694531. The next prime is 99694591. The reversal of 99694564 is 46549699.

It can be written as a sum of positive squares in only one way, i.e., 93896100 + 5798464 = 9690^2 + 2408^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12461817 + ... + 12461824.

Almost surely, 2^99694564 is an apocalyptic number.

It is an amenable number.

99694564 is a deficient number, since it is larger than the sum of its proper divisors (74770930).

99694564 is a wasteful number, since it uses less digits than its factorization.

99694564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24923645 (or 24923643 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 52.

The square root of 99694564 is about 9984.7165207631. The cubic root of 99694564 is about 463.6858319685.

The spelling of 99694564 in words is "ninety-nine million, six hundred ninety-four thousand, five hundred sixty-four".