79375521 has 8 divisors (see below), whose sum is σ = 111404320. Its totient is φ = 50131872.

The previous prime is 79375481. The next prime is 79375529. The reversal of 79375521 is 12557397.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79375521 - 2⁷ = 79375393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79375521.

It is not an unprimeable number, because it can be changed into a prime (79375529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696220 + ... + 696333.

It is an arithmetic number, because the mean of its divisors is an integer number (13925540).

Almost surely, 2^79375521 is an apocalyptic number.

It is an amenable number.

79375521 is a deficient number, since it is larger than the sum of its proper divisors (32028799).

79375521 is a wasteful number, since it uses less digits than its factorization.

79375521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392575.

The product of its digits is 66150, while the sum is 39.

The square root of 79375521 is about 8909.2940797798. The cubic root of 79375521 is about 429.7628420023.

The spelling of 79375521 in words is "seventy-nine million, three hundred seventy-five thousand, five hundred twenty-one".