79416787 has 2 divisors, whose sum is σ = 79416788. Its totient is φ = 79416786.

The previous prime is 79416781. The next prime is 79416863. The reversal of 79416787 is 78761497.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79416787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79416787.

It is not a weakly prime, because it can be changed into another prime (79416781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39708393 + 39708394.

It is an arithmetic number, because the mean of its divisors is an integer number (39708394).

Almost surely, 2^79416787 is an apocalyptic number.

79416787 is a deficient number, since it is larger than the sum of its proper divisors (1).

79416787 is an equidigital number, since it uses as much as digits as its factorization.

79416787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 49.

The square root of 79416787 is about 8911.6096750250. The cubic root of 79416787 is about 429.8373045940.

The spelling of 79416787 in words is "seventy-nine million, four hundred sixteen thousand, seven hundred eighty-seven".