79563667 has 2 divisors, whose sum is σ = 79563668. Its totient is φ = 79563666.

The previous prime is 79563641. The next prime is 79563677. The reversal of 79563667 is 76636597.

It is a strong prime.

It is an emirp because it is prime and its reverse (76636597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79563667 - 2¹¹ = 79561619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79563667.

It is not a weakly prime, because it can be changed into another prime (79563637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39781833 + 39781834.

It is an arithmetic number, because the mean of its divisors is an integer number (39781834).

Almost surely, 2^79563667 is an apocalyptic number.

79563667 is a deficient number, since it is larger than the sum of its proper divisors (1).

79563667 is an equidigital number, since it uses as much as digits as its factorization.

79563667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 49.

The square root of 79563667 is about 8919.8468036172. The cubic root of 79563667 is about 430.1021336625.

The spelling of 79563667 in words is "seventy-nine million, five hundred sixty-three thousand, six hundred sixty-seven".