77064677 has 2 divisors, whose sum is σ = 77064678. Its totient is φ = 77064676.

The previous prime is 77064671. The next prime is 77064709. The reversal of 77064677 is 77646077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71081761 + 5982916 = 8431^2 + 2446^2 .

It is a cyclic number.

It is not a de Polignac number, because 77064677 - 2¹⁸ = 76802533 is a prime.

It is a super-2 number, since 2×77064677² = 11877928882228658, 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 (77064671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38532338 + 38532339.

It is an arithmetic number, because the mean of its divisors is an integer number (38532339).

Almost surely, 2^77064677 is an apocalyptic number.

It is an amenable number.

77064677 is a deficient number, since it is larger than the sum of its proper divisors (1).

77064677 is an equidigital number, since it uses as much as digits as its factorization.

77064677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 44.

The square root of 77064677 is about 8778.6489279387. The cubic root of 77064677 is about 425.5511686354.

The spelling of 77064677 in words is "seventy-seven million, sixty-four thousand, six hundred seventy-seven".