79573 has 4 divisors (see below), whose sum is σ = 85708. Its totient is φ = 73440.

The previous prime is 79561. The next prime is 79579. The reversal of 79573 is 37597.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10404 + 69169 = 102^2 + 263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79573 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

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, 3048 + ... + 3073.

It is an arithmetic number, because the mean of its divisors is an integer number (21427).

2⁷⁹⁵⁷³ is an apocalyptic number.

It is an amenable number.

79573 is a deficient number, since it is larger than the sum of its proper divisors (6135).

79573 is a wasteful number, since it uses less digits than its factorization.

79573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134.

The product of its digits is 6615, while the sum is 31.

The square root of 79573 is about 282.0868660537. The cubic root of 79573 is about 43.0118950326.

It can be divided in two parts, 7957 and 3, that multiplied together give a triangular number (23871 = T₂₁₈).

The spelling of 79573 in words is "seventy-nine thousand, five hundred seventy-three".