64734617 has 2 divisors, whose sum is σ = 64734618. Its totient is φ = 64734616.

The previous prime is 64734587. The next prime is 64734619. The reversal of 64734617 is 71643746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41847961 + 22886656 = 6469^2 + 4784^2 .

It is a cyclic number.

It is not a de Polignac number, because 64734617 - 2⁸ = 64734361 is a prime.

Together with 64734619, 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 (64734619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32367308 + 32367309.

It is an arithmetic number, because the mean of its divisors is an integer number (32367309).

Almost surely, 2^64734617 is an apocalyptic number.

It is an amenable number.

64734617 is a deficient number, since it is larger than the sum of its proper divisors (1).

64734617 is an equidigital number, since it uses as much as digits as its factorization.

64734617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 64734617 is about 8045.7825598260. The cubic root of 64734617 is about 401.5246334322.

The spelling of 64734617 in words is "sixty-four million, seven hundred thirty-four thousand, six hundred seventeen".