79603861 has 4 divisors (see below), whose sum is σ = 79673472. Its totient is φ = 79534252.

The previous prime is 79603831. The next prime is 79603883. The reversal of 79603861 is 16830697.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79603861 - 2²³ = 71215253 is a prime.

It is a super-2 number, since 2×79603861² = 12673549372214642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79603831) 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, 33061 + ... + 35386.

It is an arithmetic number, because the mean of its divisors is an integer number (19918368).

Almost surely, 2^79603861 is an apocalyptic number.

It is an amenable number.

79603861 is a deficient number, since it is larger than the sum of its proper divisors (69611).

79603861 is a wasteful number, since it uses less digits than its factorization.

79603861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69610.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 79603861 is about 8922.0995847390. The cubic root of 79603861 is about 430.1745478499.

The spelling of 79603861 in words is "seventy-nine million, six hundred three thousand, eight hundred sixty-one".