79571 has 4 divisors (see below), whose sum is σ = 81312. Its totient is φ = 77832.

The previous prime is 79561. The next prime is 79579. The reversal of 79571 is 17597.

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

It is a de Polignac number, because none of the positive numbers 2^k-79571 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (79579) 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, 800 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (20328).

2⁷⁹⁵⁷¹ is an apocalyptic number.

79571 is a deficient number, since it is larger than the sum of its proper divisors (1741).

79571 is a wasteful number, since it uses less digits than its factorization.

79571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its digits is 2205, while the sum is 29.

The square root of 79571 is about 282.0833210241. The cubic root of 79571 is about 43.0115346737.

The spelling of 79571 in words is "seventy-nine thousand, five hundred seventy-one".