79634818 has 4 divisors (see below), whose sum is σ = 119452230. Its totient is φ = 39817408.

The previous prime is 79634813. The next prime is 79634827. The reversal of 79634818 is 81843697.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58262689 + 21372129 = 7633^2 + 4623^2 .

It is not an unprimeable number, because it can be changed into a prime (79634813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19908703 + ... + 19908706.

Almost surely, 2^79634818 is an apocalyptic number.

79634818 is a deficient number, since it is larger than the sum of its proper divisors (39817412).

79634818 is a wasteful number, since it uses less digits than its factorization.

79634818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39817411.

The product of its digits is 290304, while the sum is 46.

The square root of 79634818 is about 8923.8342656058. The cubic root of 79634818 is about 430.2303038874.

The spelling of 79634818 in words is "seventy-nine million, six hundred thirty-four thousand, eight hundred eighteen".