99649644 has 24 divisors (see below), whose sum is σ = 233487408. Its totient is φ = 33077760.

The previous prime is 99649637. The next prime is 99649657. The reversal of 99649644 is 44694699.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14337 + ... + 20120.

It is an arithmetic number, because the mean of its divisors is an integer number (9728642).

Almost surely, 2^99649644 is an apocalyptic number.

It is an amenable number.

99649644 is an abundant number, since it is smaller than the sum of its proper divisors (133837764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99649644 is a wasteful number, since it uses less digits than its factorization.

99649644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34705 (or 34703 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 99649644 is about 9982.4668293964. The cubic root of 99649644 is about 463.6161795694.

The spelling of 99649644 in words is "ninety-nine million, six hundred forty-nine thousand, six hundred forty-four".