79420635 has 64 divisors (see below), whose sum is σ = 162508800. Its totient is φ = 36049536.

The previous prime is 79420591. The next prime is 79420637. The reversal of 79420635 is 53602497.

It is not a de Polignac number, because 79420635 - 2⁷ = 79420507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79420635.

It is not an unprimeable number, because it can be changed into a prime (79420637) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 216222 + ... + 216588.

It is an arithmetic number, because the mean of its divisors is an integer number (2539200).

Almost surely, 2^79420635 is an apocalyptic number.

79420635 is an abundant number, since it is smaller than the sum of its proper divisors (83088165).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79420635 is a wasteful number, since it uses less digits than its factorization.

79420635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 79420635 is about 8911.8255705551. The cubic root of 79420635 is about 429.8442468174.

The spelling of 79420635 in words is "seventy-nine million, four hundred twenty thousand, six hundred thirty-five".