77315701 has 2 divisors, whose sum is σ = 77315702. Its totient is φ = 77315700.

The previous prime is 77315683. The next prime is 77315713. The reversal of 77315701 is 10751377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64883025 + 12432676 = 8055^2 + 3526^2 .

It is a cyclic number.

It is not a de Polignac number, because 77315701 - 2⁵ = 77315669 is a prime.

It is a super-2 number, since 2×77315701² = 11955435242242802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77315761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38657850 + 38657851.

It is an arithmetic number, because the mean of its divisors is an integer number (38657851).

Almost surely, 2^77315701 is an apocalyptic number.

It is an amenable number.

77315701 is a deficient number, since it is larger than the sum of its proper divisors (1).

77315701 is an equidigital number, since it uses as much as digits as its factorization.

77315701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5145, while the sum is 31.

The square root of 77315701 is about 8792.9347205583. The cubic root of 77315701 is about 426.0127193922.

The spelling of 77315701 in words is "seventy-seven million, three hundred fifteen thousand, seven hundred one".