78796807 has 2 divisors, whose sum is σ = 78796808. Its totient is φ = 78796806.

The previous prime is 78796789. The next prime is 78796831. The reversal of 78796807 is 70869787.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78796807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78796847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39398403 + 39398404.

It is an arithmetic number, because the mean of its divisors is an integer number (39398404).

Almost surely, 2^78796807 is an apocalyptic number.

78796807 is a deficient number, since it is larger than the sum of its proper divisors (1).

78796807 is an equidigital number, since it uses as much as digits as its factorization.

78796807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The square root of 78796807 is about 8876.7565585635. The cubic root of 78796807 is about 428.7158497451.

The spelling of 78796807 in words is "seventy-eight million, seven hundred ninety-six thousand, eight hundred seven".