64596647 has 2 divisors, whose sum is σ = 64596648. Its totient is φ = 64596646.

The previous prime is 64596619. The next prime is 64596667. The reversal of 64596647 is 74669546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64596647 - 2¹⁸ = 64334503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64596667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32298323 + 32298324.

It is an arithmetic number, because the mean of its divisors is an integer number (32298324).

Almost surely, 2^64596647 is an apocalyptic number.

64596647 is a deficient number, since it is larger than the sum of its proper divisors (1).

64596647 is an equidigital number, since it uses as much as digits as its factorization.

64596647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 47.

The square root of 64596647 is about 8037.2039292281. The cubic root of 64596647 is about 401.2391717526.

The spelling of 64596647 in words is "sixty-four million, five hundred ninety-six thousand, six hundred forty-seven".