99312424 has 8 divisors (see below), whose sum is σ = 186210810. Its totient is φ = 49656208.

The previous prime is 99312397. The next prime is 99312427. The reversal of 99312424 is 42421399.

It can be written as a sum of positive squares in only one way, i.e., 74132100 + 25180324 = 8610^2 + 5018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 99312424.

It is not an unprimeable number, because it can be changed into a prime (99312427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6207019 + ... + 6207034.

Almost surely, 2^99312424 is an apocalyptic number.

It is an amenable number.

99312424 is a deficient number, since it is larger than the sum of its proper divisors (86898386).

99312424 is a wasteful number, since it uses less digits than its factorization.

99312424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12414059 (or 12414055 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 99312424 is about 9965.5619008664. The cubic root of 99312424 is about 463.0926207980.

The spelling of 99312424 in words is "ninety-nine million, three hundred twelve thousand, four hundred twenty-four".