64372577 has 2 divisors, whose sum is σ = 64372578. Its totient is φ = 64372576.

The previous prime is 64372573. The next prime is 64372579. The reversal of 64372577 is 77527346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57168721 + 7203856 = 7561^2 + 2684^2 .

It is a cyclic number.

It is not a de Polignac number, because 64372577 - 2² = 64372573 is a prime.

Together with 64372579, 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 (64372571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32186288 + 32186289.

It is an arithmetic number, because the mean of its divisors is an integer number (32186289).

Almost surely, 2^64372577 is an apocalyptic number.

It is an amenable number.

64372577 is a deficient number, since it is larger than the sum of its proper divisors (1).

64372577 is an equidigital number, since it uses as much as digits as its factorization.

64372577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 41.

The square root of 64372577 is about 8023.2522707441. The cubic root of 64372577 is about 400.7747007117.

The spelling of 64372577 in words is "sixty-four million, three hundred seventy-two thousand, five hundred seventy-seven".