64877 has 2 divisors, whose sum is σ = 64878. Its totient is φ = 64876.

The previous prime is 64871. The next prime is 64879. The reversal of 64877 is 77846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64516 + 361 = 254^2 + 19^2 .

It is a cyclic number.

It is not a de Polignac number, because 64877 - 2⁸ = 64621 is a prime.

Together with 64879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64877.

It is not a weakly prime, because it can be changed into another prime (64871) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32438 + 32439.

It is an arithmetic number, because the mean of its divisors is an integer number (32439).

2⁶⁴⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

64877 is a deficient number, since it is larger than the sum of its proper divisors (1).

64877 is an equidigital number, since it uses as much as digits as its factorization.

64877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 32.

The square root of 64877 is about 254.7096386084. The cubic root of 64877 is about 40.1818800709.

The spelling of 64877 in words is "sixty-four thousand, eight hundred seventy-seven".