79997194 has 4 divisors (see below), whose sum is σ = 119995794. Its totient is φ = 39998596.

The previous prime is 79997153. The next prime is 79997207. The reversal of 79997194 is 49179997.

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., 78588225 + 1408969 = 8865^2 + 1187^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19999297 + ... + 19999300.

Almost surely, 2^79997194 is an apocalyptic number.

79997194 is a deficient number, since it is larger than the sum of its proper divisors (39998600).

79997194 is a wasteful number, since it uses less digits than its factorization.

79997194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39998599.

The product of its digits is 1285956, while the sum is 55.

The square root of 79997194 is about 8944.1150484550. The cubic root of 79997194 is about 430.8819001610.

The spelling of 79997194 in words is "seventy-nine million, nine hundred ninety-seven thousand, one hundred ninety-four".