79734571 has 4 divisors (see below), whose sum is σ = 91125232. Its totient is φ = 68343912.

The previous prime is 79734563. The next prime is 79734587. The reversal of 79734571 is 17543797.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 79734571 - 2³ = 79734563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79734521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5695320 + ... + 5695333.

It is an arithmetic number, because the mean of its divisors is an integer number (22781308).

Almost surely, 2^79734571 is an apocalyptic number.

79734571 is a deficient number, since it is larger than the sum of its proper divisors (11390661).

79734571 is a wasteful number, since it uses less digits than its factorization.

79734571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11390660.

The product of its digits is 185220, while the sum is 43.

The square root of 79734571 is about 8929.4216498047. The cubic root of 79734571 is about 430.4098687956.

It can be divided in two parts, 7973 and 4571, that added together give a square (12544 = 112²).

The spelling of 79734571 in words is "seventy-nine million, seven hundred thirty-four thousand, five hundred seventy-one".