78796313 has 2 divisors, whose sum is σ = 78796314. Its totient is φ = 78796312.

The previous prime is 78796279. The next prime is 78796351. The reversal of 78796313 is 31369787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40998409 + 37797904 = 6403^2 + 6148^2 .

It is a cyclic number.

It is not a de Polignac number, because 78796313 - 2⁸ = 78796057 is a prime.

It is not a weakly prime, because it can be changed into another prime (78792313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39398156 + 39398157.

It is an arithmetic number, because the mean of its divisors is an integer number (39398157).

Almost surely, 2^78796313 is an apocalyptic number.

It is an amenable number.

78796313 is a deficient number, since it is larger than the sum of its proper divisors (1).

78796313 is an equidigital number, since it uses as much as digits as its factorization.

78796313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 78796313 is about 8876.7287330412. The cubic root of 78796313 is about 428.7149538286.

The spelling of 78796313 in words is "seventy-eight million, seven hundred ninety-six thousand, three hundred thirteen".