99953992 has 16 divisors (see below), whose sum is σ = 188451900. Its totient is φ = 49700160.

The previous prime is 99953989. The next prime is 99953993. The reversal of 99953992 is 29935999.

It can be written as a sum of positive squares in 2 ways, for example, as 80892036 + 19061956 = 8994^2 + 4366^2 .

It is not an unprimeable number, because it can be changed into a prime (99953993) 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, 33067 + ... + 35962.

Almost surely, 2^99953992 is an apocalyptic number.

It is an amenable number.

99953992 is a deficient number, since it is larger than the sum of its proper divisors (88497908).

99953992 is a wasteful number, since it uses less digits than its factorization.

99953992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69216 (or 69212 counting only the distinct ones).

The product of its digits is 1771470, while the sum is 55.

The square root of 99953992 is about 9997.6993353471. The cubic root of 99953992 is about 464.0876890354.

The spelling of 99953992 in words is "ninety-nine million, nine hundred fifty-three thousand, nine hundred ninety-two".