64361617 has 2 divisors, whose sum is σ = 64361618. Its totient is φ = 64361616.

The previous prime is 64361581. The next prime is 64361621. The reversal of 64361617 is 71616346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58997761 + 5363856 = 7681^2 + 2316^2 .

It is a cyclic number.

It is not a de Polignac number, because 64361617 - 2⁷ = 64361489 is a prime.

It is not a weakly prime, because it can be changed into another prime (64361657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32180808 + 32180809.

It is an arithmetic number, because the mean of its divisors is an integer number (32180809).

Almost surely, 2^64361617 is an apocalyptic number.

It is an amenable number.

64361617 is a deficient number, since it is larger than the sum of its proper divisors (1).

64361617 is an equidigital number, since it uses as much as digits as its factorization.

64361617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 64361617 is about 8022.5692268749. The cubic root of 64361617 is about 400.7519542761.

The spelling of 64361617 in words is "sixty-four million, three hundred sixty-one thousand, six hundred seventeen".