79061728 has 12 divisors (see below), whose sum is σ = 155652840. Its totient is φ = 39530848.

The previous prime is 79061669. The next prime is 79061753. The reversal of 79061728 is 82716097.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235308 + ... + 1235371.

It is an arithmetic number, because the mean of its divisors is an integer number (12971070).

Almost surely, 2^79061728 is an apocalyptic number.

It is an amenable number.

79061728 is a deficient number, since it is larger than the sum of its proper divisors (76591112).

79061728 is a wasteful number, since it uses less digits than its factorization.

79061728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470689 (or 2470681 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 79061728 is about 8891.6662105592. Note that the first 3 decimals coincide. The cubic root of 79061728 is about 429.1957709905.

The spelling of 79061728 in words is "seventy-nine million, sixty-one thousand, seven hundred twenty-eight".