79195778 has 16 divisors (see below), whose sum is σ = 120657600. Its totient is φ = 38980176.

The previous prime is 79195777. The next prime is 79195783. The reversal of 79195778 is 87759197.

It is not an unprimeable number, because it can be changed into a prime (79195777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57251 + ... + 58617.

It is an arithmetic number, because the mean of its divisors is an integer number (7541100).

Almost surely, 2^79195778 is an apocalyptic number.

79195778 is a deficient number, since it is larger than the sum of its proper divisors (41461822).

79195778 is a wasteful number, since it uses less digits than its factorization.

79195778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801.

The product of its digits is 1111320, while the sum is 53.

The square root of 79195778 is about 8899.2009753685. The cubic root of 79195778 is about 429.4382026904.

It can be divided in two parts, 791 and 95778, that added together give a palindrome (96569).

The spelling of 79195778 in words is "seventy-nine million, one hundred ninety-five thousand, seven hundred seventy-eight".