99428664 has 32 divisors (see below), whose sum is σ = 251370000. Its totient is φ = 32769792.

The previous prime is 99428663. The next prime is 99428711. The reversal of 99428664 is 46682499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99428663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21139 + ... + 25410.

Almost surely, 2^99428664 is an apocalyptic number.

It is an amenable number.

99428664 is an abundant number, since it is smaller than the sum of its proper divisors (151941336).

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

99428664 is a wasteful number, since it uses less digits than its factorization.

99428664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46647 (or 46643 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 99428664 is about 9971.3922799176. The cubic root of 99428664 is about 463.2732255871.

The spelling of 99428664 in words is "ninety-nine million, four hundred twenty-eight thousand, six hundred sixty-four".