99744872 has 16 divisors (see below), whose sum is σ = 187236900. Its totient is φ = 49815040.

The previous prime is 99744863. The next prime is 99744893. The reversal of 99744872 is 27844799.

It can be written as a sum of positive squares in 2 ways, for example, as 99480676 + 264196 = 9974^2 + 514^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99744872.

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, 722 + ... + 14142.

Almost surely, 2^99744872 is an apocalyptic number.

It is an amenable number.

99744872 is a deficient number, since it is larger than the sum of its proper divisors (87492028).

99744872 is a wasteful number, since it uses less digits than its factorization.

99744872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14356 (or 14352 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 99744872 is about 9987.2354533174. The cubic root of 99744872 is about 463.7638141011.

The spelling of 99744872 in words is "ninety-nine million, seven hundred forty-four thousand, eight hundred seventy-two".