99996388 has 12 divisors (see below), whose sum is σ = 175901740. Its totient is φ = 49738752.

The previous prime is 99996353. The next prime is 99996389. The reversal of 99996388 is 88369999.

It can be written as a sum of positive squares in 2 ways, for example, as 54730404 + 45265984 = 7398^2 + 6728^2 .

It is a super-2 number, since 2×99996388² = 19998555226093088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99996389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63993 + ... + 65536.

Almost surely, 2^99996388 is an apocalyptic number.

It is an amenable number.

99996388 is a deficient number, since it is larger than the sum of its proper divisors (75905352).

99996388 is a wasteful number, since it uses less digits than its factorization.

99996388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129726 (or 129724 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 61.

The square root of 99996388 is about 9999.8193983692. The cubic root of 99996388 is about 464.1532948210.

The spelling of 99996388 in words is "ninety-nine million, nine hundred ninety-six thousand, three hundred eighty-eight".