79728070 has 16 divisors (see below), whose sum is σ = 143689968. Its totient is φ = 31851360.

The previous prime is 79728053. The next prime is 79728073. The reversal of 79728070 is 7082797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79728073) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4225 + ... + 13315.

It is an arithmetic number, because the mean of its divisors is an integer number (8980623).

Almost surely, 2^79728070 is an apocalyptic number.

79728070 is a deficient number, since it is larger than the sum of its proper divisors (63961898).

79728070 is a wasteful number, since it uses less digits than its factorization.

79728070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9975.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 79728070 is about 8929.0576210483. The cubic root of 79728070 is about 430.3981709395.

The spelling of 79728070 in words is "seventy-nine million, seven hundred twenty-eight thousand, seventy".