99290644 has 12 divisors (see below), whose sum is σ = 179363968. Its totient is φ = 48043800.

The previous prime is 99290623. The next prime is 99290651. The reversal of 99290644 is 44609299.

It is a self number, because there is not a number n which added to its sum of digits gives 99290644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400242 + ... + 400489.

Almost surely, 2^99290644 is an apocalyptic number.

It is an amenable number.

99290644 is a deficient number, since it is larger than the sum of its proper divisors (80073324).

99290644 is a wasteful number, since it uses less digits than its factorization.

99290644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800766 (or 800764 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 99290644 is about 9964.4690776779. The cubic root of 99290644 is about 463.0587650315.

The spelling of 99290644 in words is "ninety-nine million, two hundred ninety thousand, six hundred forty-four".