99312232 has 16 divisors (see below), whose sum is σ = 197164260. Its totient is φ = 46735104.

The previous prime is 99312223. The next prime is 99312263. The reversal of 99312232 is 23221399.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91661476 + 7650756 = 9574^2 + 2766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 99312194 and 99312203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364983 + ... + 365254.

Almost surely, 2^99312232 is an apocalyptic number.

It is an amenable number.

99312232 is a deficient number, since it is larger than the sum of its proper divisors (97852028).

99312232 is a wasteful number, since it uses less digits than its factorization.

99312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730260 (or 730256 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 99312232 is about 9965.5522676869. The cubic root of 99312232 is about 463.0923223665.

It can be divided in two parts, 993 and 12232, that added together give a square (13225 = 115²).

The spelling of 99312232 in words is "ninety-nine million, three hundred twelve thousand, two hundred thirty-two".