99793728 has 56 divisors (see below), whose sum is σ = 293380160. Its totient is φ = 33264000.

The previous prime is 99793717. The next prime is 99793741. The reversal of 99793728 is 82739799.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 27148 + ... + 30603.

Almost surely, 2^99793728 is an apocalyptic number.

It is an amenable number.

99793728 is an abundant number, since it is smaller than the sum of its proper divisors (193586432).

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

99793728 is a wasteful number, since it uses less digits than its factorization.

99793728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57772 (or 57756 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 99793728 is about 9989.6810759904. The cubic root of 99793728 is about 463.8395204044.

The spelling of 99793728 in words is "ninety-nine million, seven hundred ninety-three thousand, seven hundred twenty-eight".