79212621 has 16 divisors (see below), whose sum is σ = 110900736. Its totient is φ = 50195376.

The previous prime is 79212619. The next prime is 79212631. The reversal of 79212621 is 12621297.

It is not a de Polignac number, because 79212621 - 2¹ = 79212619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79212631) 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, 7726 + ... + 14768.

It is an arithmetic number, because the mean of its divisors is an integer number (6931296).

Almost surely, 2^79212621 is an apocalyptic number.

It is an amenable number.

79212621 is a deficient number, since it is larger than the sum of its proper divisors (31688115).

79212621 is a wasteful number, since it uses less digits than its factorization.

79212621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7232.

The product of its digits is 3024, while the sum is 30.

The square root of 79212621 is about 8900.1472459730. The cubic root of 79212621 is about 429.4686441909.

The spelling of 79212621 in words is "seventy-nine million, two hundred twelve thousand, six hundred twenty-one".