79516691 has 8 divisors (see below), whose sum is σ = 83845200. Its totient is φ = 75202560.

The previous prime is 79516673. The next prime is 79516741. The reversal of 79516691 is 19661597.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79516691 - 2⁶ = 79516627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79516291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8915 + ... + 15443.

It is an arithmetic number, because the mean of its divisors is an integer number (10480650).

Almost surely, 2^79516691 is an apocalyptic number.

79516691 is a deficient number, since it is larger than the sum of its proper divisors (4328509).

79516691 is a wasteful number, since it uses less digits than its factorization.

79516691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189.

The product of its digits is 102060, while the sum is 44.

The square root of 79516691 is about 8917.2131857436. The cubic root of 79516691 is about 430.0174699951.

The spelling of 79516691 in words is "seventy-nine million, five hundred sixteen thousand, six hundred ninety-one".