79347428 has 12 divisors (see below), whose sum is σ = 138992700. Its totient is φ = 39635232.

The previous prime is 79347407. The next prime is 79347431. The reversal of 79347428 is 82474397.

It can be written as a sum of positive squares in 2 ways, for example, as 56670784 + 22676644 = 7528^2 + 4762^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703 + ... + 13446.

It is an arithmetic number, because the mean of its divisors is an integer number (11582725).

Almost surely, 2^79347428 is an apocalyptic number.

It is an amenable number.

79347428 is a deficient number, since it is larger than the sum of its proper divisors (59645272).

79347428 is a wasteful number, since it uses less digits than its factorization.

79347428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19246 (or 19244 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 79347428 is about 8907.7173282497. The cubic root of 79347428 is about 429.7121347146.

The spelling of 79347428 in words is "seventy-nine million, three hundred forty-seven thousand, four hundred twenty-eight".