78677323 has 2 divisors, whose sum is σ = 78677324. Its totient is φ = 78677322.

The previous prime is 78677311. The next prime is 78677327. The reversal of 78677323 is 32377687.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78677323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78677323.

It is not a weakly prime, because it can be changed into another prime (78677327) 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, 39338661 + 39338662.

It is an arithmetic number, because the mean of its divisors is an integer number (39338662).

Almost surely, 2^78677323 is an apocalyptic number.

78677323 is a deficient number, since it is larger than the sum of its proper divisors (1).

78677323 is an equidigital number, since it uses as much as digits as its factorization.

78677323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 43.

The square root of 78677323 is about 8870.0238443873. The cubic root of 78677323 is about 428.4990448601.

The spelling of 78677323 in words is "seventy-eight million, six hundred seventy-seven thousand, three hundred twenty-three".