79127840 has 48 divisors (see below), whose sum is σ = 203938560. Its totient is φ = 28773120.

The previous prime is 79127833. The next prime is 79127857. The reversal of 79127840 is 4872197.

It is a super-2 number, since 2×79127840² = 12522430126131200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79127794 and 79127803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20720 + ... + 24239.

It is an arithmetic number, because the mean of its divisors is an integer number (4248720).

Almost surely, 2^79127840 is an apocalyptic number.

It is an amenable number.

79127840 is an abundant number, since it is smaller than the sum of its proper divisors (124810720).

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

79127840 is a wasteful number, since it uses less digits than its factorization.

79127840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44985 (or 44977 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 79127840 is about 8895.3830721335. The cubic root of 79127840 is about 429.3153698831.

The spelling of 79127840 in words is "seventy-nine million, one hundred twenty-seven thousand, eight hundred forty".