77009017 has 2 divisors, whose sum is σ = 77009018. Its totient is φ = 77009016.

The previous prime is 77009003. The next prime is 77009041. The reversal of 77009017 is 71090077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 15872256 = 7819^2 + 3984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77009017 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77009017.

It is not a weakly prime, because it can be changed into another prime (77009417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38504508 + 38504509.

It is an arithmetic number, because the mean of its divisors is an integer number (38504509).

Almost surely, 2^77009017 is an apocalyptic number.

It is an amenable number.

77009017 is a deficient number, since it is larger than the sum of its proper divisors (1).

77009017 is an equidigital number, since it uses as much as digits as its factorization.

77009017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3087, while the sum is 31.

The square root of 77009017 is about 8775.4781636102. The cubic root of 77009017 is about 425.4486924483.

The spelling of 77009017 in words is "seventy-seven million, nine thousand, seventeen".