77241313 has 2 divisors, whose sum is σ = 77241314. Its totient is φ = 77241312.

The previous prime is 77241301. The next prime is 77241349. The reversal of 77241313 is 31314277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74442384 + 2798929 = 8628^2 + 1673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77241313 is a prime.

It is not a weakly prime, because it can be changed into another prime (77248313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38620656 + 38620657.

It is an arithmetic number, because the mean of its divisors is an integer number (38620657).

Almost surely, 2^77241313 is an apocalyptic number.

It is an amenable number.

77241313 is a deficient number, since it is larger than the sum of its proper divisors (1).

77241313 is an equidigital number, since it uses as much as digits as its factorization.

77241313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 28.

The square root of 77241313 is about 8788.7037155658. The cubic root of 77241313 is about 425.8760485625.

The spelling of 77241313 in words is "seventy-seven million, two hundred forty-one thousand, three hundred thirteen".