79190887 has 2 divisors, whose sum is σ = 79190888. Its totient is φ = 79190886.

The previous prime is 79190873. The next prime is 79190927. The reversal of 79190887 is 78809197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79190887 - 2⁷ = 79190759 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79190887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79190827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39595443 + 39595444.

It is an arithmetic number, because the mean of its divisors is an integer number (39595444).

Almost surely, 2^79190887 is an apocalyptic number.

79190887 is a deficient number, since it is larger than the sum of its proper divisors (1).

79190887 is an equidigital number, since it uses as much as digits as its factorization.

79190887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 79190887 is about 8898.9261711737. The cubic root of 79190887 is about 429.4293620446.

The spelling of 79190887 in words is "seventy-nine million, one hundred ninety thousand, eight hundred eighty-seven".