77313079 has 2 divisors, whose sum is σ = 77313080. Its totient is φ = 77313078.

The previous prime is 77313037. The next prime is 77313121. The reversal of 77313079 is 97031377.

It is a balanced prime because it is at equal distance from previous prime (77313037) and next prime (77313121).

It is a cyclic number.

It is not a de Polignac number, because 77313079 - 2⁹ = 77312567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77313179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38656539 + 38656540.

It is an arithmetic number, because the mean of its divisors is an integer number (38656540).

Almost surely, 2^77313079 is an apocalyptic number.

77313079 is a deficient number, since it is larger than the sum of its proper divisors (1).

77313079 is an equidigital number, since it uses as much as digits as its factorization.

77313079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27783, while the sum is 37.

The square root of 77313079 is about 8792.7856223156. The cubic root of 77313079 is about 426.0079035615.

The spelling of 77313079 in words is "seventy-seven million, three hundred thirteen thousand, seventy-nine".