79564699 has 2 divisors, whose sum is σ = 79564700. Its totient is φ = 79564698.

The previous prime is 79564697. The next prime is 79564717. The reversal of 79564699 is 99646597.

It is a weak prime.

It is an emirp because it is prime and its reverse (99646597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79564699 - 2¹ = 79564697 is a prime.

Together with 79564697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79564691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39782349 + 39782350.

It is an arithmetic number, because the mean of its divisors is an integer number (39782350).

Almost surely, 2^79564699 is an apocalyptic number.

79564699 is a deficient number, since it is larger than the sum of its proper divisors (1).

79564699 is an equidigital number, since it uses as much as digits as its factorization.

79564699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 55.

The square root of 79564699 is about 8919.9046519568. The cubic root of 79564699 is about 430.1039932361.

The spelling of 79564699 in words is "seventy-nine million, five hundred sixty-four thousand, six hundred ninety-nine".