64875677 has 2 divisors, whose sum is σ = 64875678. Its totient is φ = 64875676.

The previous prime is 64875667. The next prime is 64875721. The reversal of 64875677 is 77657846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39363076 + 25512601 = 6274^2 + 5051^2 .

It is a cyclic number.

It is not a de Polignac number, because 64875677 - 2¹² = 64871581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64875607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32437838 + 32437839.

It is an arithmetic number, because the mean of its divisors is an integer number (32437839).

Almost surely, 2^64875677 is an apocalyptic number.

It is an amenable number.

64875677 is a deficient number, since it is larger than the sum of its proper divisors (1).

64875677 is an equidigital number, since it uses as much as digits as its factorization.

64875677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 50.

The square root of 64875677 is about 8054.5438728708. The cubic root of 64875677 is about 401.8160693354.

The spelling of 64875677 in words is "sixty-four million, eight hundred seventy-five thousand, six hundred seventy-seven".