79422621 has 16 divisors (see below), whose sum is σ = 109382400. Its totient is φ = 51231488.

The previous prime is 79422601. The next prime is 79422643. The reversal of 79422621 is 12622497.

It is a cyclic number.

It is not a de Polignac number, because 79422621 - 2¹¹ = 79420573 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79422601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9385 + ... + 15713.

It is an arithmetic number, because the mean of its divisors is an integer number (6836400).

Almost surely, 2^79422621 is an apocalyptic number.

It is an amenable number.

79422621 is a deficient number, since it is larger than the sum of its proper divisors (29959779).

79422621 is a wasteful number, since it uses less digits than its factorization.

79422621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6468.

The product of its digits is 12096, while the sum is 33.

The square root of 79422621 is about 8911.9369948401. The cubic root of 79422621 is about 429.8478296963.

The spelling of 79422621 in words is "seventy-nine million, four hundred twenty-two thousand, six hundred twenty-one".