99503728 has 20 divisors (see below), whose sum is σ = 193101480. Its totient is φ = 49671104.

The previous prime is 99503717. The next prime is 99503753. The reversal of 99503728 is 82730599.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5826 + ... + 15262.

It is an arithmetic number, because the mean of its divisors is an integer number (9655074).

Almost surely, 2^99503728 is an apocalyptic number.

It is an amenable number.

99503728 is a deficient number, since it is larger than the sum of its proper divisors (93597752).

99503728 is a wasteful number, since it uses less digits than its factorization.

99503728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104 (or 10098 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 99503728 is about 9975.1555376345. The cubic root of 99503728 is about 463.3897794811.

The spelling of 99503728 in words is "ninety-nine million, five hundred three thousand, seven hundred twenty-eight".