79097666 has 4 divisors (see below), whose sum is σ = 118646502. Its totient is φ = 39548832.

The previous prime is 79097659. The next prime is 79097671. The reversal of 79097666 is 66679097.

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., 66994225 + 12103441 = 8185^2 + 3479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19774415 + ... + 19774418.

Almost surely, 2^79097666 is an apocalyptic number.

79097666 is a deficient number, since it is larger than the sum of its proper divisors (39548836).

79097666 is a wasteful number, since it uses less digits than its factorization.

79097666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39548835.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 79097666 is about 8893.6868620387. The cubic root of 79097666 is about 429.2607923415.

The spelling of 79097666 in words is "seventy-nine million, ninety-seven thousand, six hundred sixty-six".