79769998 has 64 divisors (see below), whose sum is σ = 155271168. Its totient is φ = 29841120.

The previous prime is 79769993. The next prime is 79770011. The reversal of 79769998 is 89996797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79769993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745461 + ... + 745567.

It is an arithmetic number, because the mean of its divisors is an integer number (2426112).

Almost surely, 2^79769998 is an apocalyptic number.

79769998 is a deficient number, since it is larger than the sum of its proper divisors (75501170).

79769998 is a wasteful number, since it uses less digits than its factorization.

79769998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its digits is 15431472, while the sum is 64.

The square root of 79769998 is about 8931.4051526062. The cubic root of 79769998 is about 430.4736047321.

It can be divided in two parts, 797699 and 98, that added together give a palindrome (797797).

The spelling of 79769998 in words is "seventy-nine million, seven hundred sixty-nine thousand, nine hundred ninety-eight".