864596077 has 2 divisors, whose sum is σ = 864596078. Its totient is φ = 864596076.

The previous prime is 864596041. The next prime is 864596101. The reversal of 864596077 is 770695468.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493995076 + 370601001 = 22226^2 + 19251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-864596077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864596377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432298038 + 432298039.

It is an arithmetic number, because the mean of its divisors is an integer number (432298039).

Almost surely, 2^864596077 is an apocalyptic number.

It is an amenable number.

864596077 is a deficient number, since it is larger than the sum of its proper divisors (1).

864596077 is an equidigital number, since it uses as much as digits as its factorization.

864596077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 864596077 is about 29404.0146408615. The cubic root of 864596077 is about 952.6596116766.

The spelling of 864596077 in words is "eight hundred sixty-four million, five hundred ninety-six thousand, seventy-seven".