79446728 has 16 divisors (see below), whose sum is σ = 151061760. Its totient is φ = 39163600.

The previous prime is 79446727. The next prime is 79446737. The reversal of 79446728 is 82764497.

It is not an unprimeable number, because it can be changed into a prime (79446727) 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 3 ways as a sum of consecutive naturals, for example, 69368 + ... + 70503.

It is an arithmetic number, because the mean of its divisors is an integer number (9441360).

Almost surely, 2^79446728 is an apocalyptic number.

It is an amenable number.

79446728 is a deficient number, since it is larger than the sum of its proper divisors (71615032).

79446728 is a wasteful number, since it uses less digits than its factorization.

79446728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139948 (or 139944 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 79446728 is about 8913.2894040304. The cubic root of 79446728 is about 429.8913156002.

The spelling of 79446728 in words is "seventy-nine million, four hundred forty-six thousand, seven hundred twenty-eight".