79524121 has 4 divisors (see below), whose sum is σ = 79983972. Its totient is φ = 79064272.

The previous prime is 79524103. The next prime is 79524149. The reversal of 79524121 is 12142597.

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 48108096 + 31416025 = 6936^2 + 5605^2 .

It is a cyclic number.

It is not a de Polignac number, because 79524121 - 2⁷ = 79523993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79524161) 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, 229666 + ... + 230011.

It is an arithmetic number, because the mean of its divisors is an integer number (19995993).

Almost surely, 2^79524121 is an apocalyptic number.

It is an amenable number.

79524121 is a deficient number, since it is larger than the sum of its proper divisors (459851).

79524121 is a wasteful number, since it uses less digits than its factorization.

79524121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459850.

The product of its digits is 5040, while the sum is 31.

The square root of 79524121 is about 8917.6297859913. The cubic root of 79524121 is about 430.0308631174.

It can be divided in two parts, 79524 and 121, that multiplied together give a square (9622404 = 3102²).

The spelling of 79524121 in words is "seventy-nine million, five hundred twenty-four thousand, one hundred twenty-one".