77295013 has 2 divisors, whose sum is σ = 77295014. Its totient is φ = 77295012.

The previous prime is 77294993. The next prime is 77295017. The reversal of 77295013 is 31059277.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54656449 + 22638564 = 7393^2 + 4758^2 .

It is a cyclic number.

It is not a de Polignac number, because 77295013 - 2²⁵ = 43740581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77295013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77295017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38647506 + 38647507.

It is an arithmetic number, because the mean of its divisors is an integer number (38647507).

Almost surely, 2^77295013 is an apocalyptic number.

It is an amenable number.

77295013 is a deficient number, since it is larger than the sum of its proper divisors (1).

77295013 is an equidigital number, since it uses as much as digits as its factorization.

77295013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 77295013 is about 8791.7582428090. The cubic root of 77295013 is about 425.9747187566.

The spelling of 77295013 in words is "seventy-seven million, two hundred ninety-five thousand, thirteen".