79406197 has 4 divisors (see below), whose sum is σ = 85514380. Its totient is φ = 73298016.

The previous prime is 79406179. The next prime is 79406213. The reversal of 79406197 is 79160497.

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 2 ways, for example, as 8071281 + 71334916 = 2841^2 + 8446^2 .

It is a cyclic number.

It is not a de Polignac number, because 79406197 - 2⁷ = 79406069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79406177) 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, 3054072 + ... + 3054097.

It is an arithmetic number, because the mean of its divisors is an integer number (21378595).

Almost surely, 2^79406197 is an apocalyptic number.

It is an amenable number.

79406197 is a deficient number, since it is larger than the sum of its proper divisors (6108183).

79406197 is a wasteful number, since it uses less digits than its factorization.

79406197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108182.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 79406197 is about 8911.0154864639. The cubic root of 79406197 is about 429.8181978888.

The spelling of 79406197 in words is "seventy-nine million, four hundred six thousand, one hundred ninety-seven".