79728330 has 32 divisors (see below), whose sum is σ = 208744128. Its totient is φ = 19328000.

The previous prime is 79728329. The next prime is 79728347. The reversal of 79728330 is 3382797.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120471 + ... + 121130.

It is an arithmetic number, because the mean of its divisors is an integer number (6523254).

Almost surely, 2^79728330 is an apocalyptic number.

79728330 is an abundant number, since it is smaller than the sum of its proper divisors (129015798).

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

79728330 is a wasteful number, since it uses less digits than its factorization.

79728330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241622.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 79728330 is about 8929.0721802436. The cubic root of 79728330 is about 430.3986387940.

The spelling of 79728330 in words is "seventy-nine million, seven hundred twenty-eight thousand, three hundred thirty".