79739628 has 12 divisors (see below), whose sum is σ = 186059160. Its totient is φ = 26579872.

The previous prime is 79739623. The next prime is 79739633. The reversal of 79739628 is 82693797.

It is an interprime number because it is at equal distance from previous prime (79739623) and next prime (79739633).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (79739623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3322473 + ... + 3322496.

It is an arithmetic number, because the mean of its divisors is an integer number (15504930).

Almost surely, 2^79739628 is an apocalyptic number.

It is an amenable number.

79739628 is an abundant number, since it is smaller than the sum of its proper divisors (106319532).

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

79739628 is a wasteful number, since it uses less digits than its factorization.

79739628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644976 (or 6644974 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 79739628 is about 8929.7048103507. The cubic root of 79739628 is about 430.4189678880.

The spelling of 79739628 in words is "seventy-nine million, seven hundred thirty-nine thousand, six hundred twenty-eight".