99047728 has 40 divisors (see below), whose sum is σ = 213347456. Its totient is φ = 44236800.

The previous prime is 99047701. The next prime is 99047743. The reversal of 99047728 is 82774099.

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, 1233 + ... + 14128.

Almost surely, 2^99047728 is an apocalyptic number.

It is an amenable number.

99047728 is an abundant number, since it is smaller than the sum of its proper divisors (114299728).

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

99047728 is a wasteful number, since it uses less digits than its factorization.

99047728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15413 (or 15407 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 99047728 is about 9952.2725043077. The cubic root of 99047728 is about 462.6808299953.

The spelling of 99047728 in words is "ninety-nine million, forty-seven thousand, seven hundred twenty-eight".