79127742 has 32 divisors (see below), whose sum is σ = 167022720. Its totient is φ = 24922080.

The previous prime is 79127729. The next prime is 79127753. The reversal of 79127742 is 24772197.

It is a super-2 number, since 2×79127742² = 12522399108037128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 79127742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61033 + ... + 62315.

It is an arithmetic number, because the mean of its divisors is an integer number (5219460).

Almost surely, 2^79127742 is an apocalyptic number.

79127742 is an abundant number, since it is smaller than the sum of its proper divisors (87894978).

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

79127742 is a wasteful number, since it uses less digits than its factorization.

79127742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848.

The product of its digits is 49392, while the sum is 39.

The square root of 79127742 is about 8895.3775636563. The cubic root of 79127742 is about 429.3151926470.

The spelling of 79127742 in words is "seventy-nine million, one hundred twenty-seven thousand, seven hundred forty-two".