64276577 has 2 divisors, whose sum is σ = 64276578. Its totient is φ = 64276576.

The previous prime is 64276567. The next prime is 64276579. The reversal of 64276577 is 77567246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64144081 + 132496 = 8009^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 64276577 - 2²² = 60082273 is a prime.

Together with 64276579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64276579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32138288 + 32138289.

It is an arithmetic number, because the mean of its divisors is an integer number (32138289).

Almost surely, 2^64276577 is an apocalyptic number.

It is an amenable number.

64276577 is a deficient number, since it is larger than the sum of its proper divisors (1).

64276577 is an equidigital number, since it uses as much as digits as its factorization.

64276577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 44.

The square root of 64276577 is about 8017.2674272473. The cubic root of 64276577 is about 400.5753740483.

The spelling of 64276577 in words is "sixty-four million, two hundred seventy-six thousand, five hundred seventy-seven".