64607573 has 2 divisors, whose sum is σ = 64607574. Its totient is φ = 64607572.

The previous prime is 64607561. The next prime is 64607593. The reversal of 64607573 is 37570646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38464804 + 26142769 = 6202^2 + 5113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64607573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64607533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32303786 + 32303787.

It is an arithmetic number, because the mean of its divisors is an integer number (32303787).

Almost surely, 2^64607573 is an apocalyptic number.

It is an amenable number.

64607573 is a deficient number, since it is larger than the sum of its proper divisors (1).

64607573 is an equidigital number, since it uses as much as digits as its factorization.

64607573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 64607573 is about 8037.8836144846. The cubic root of 64607573 is about 401.2617925967.

The spelling of 64607573 in words is "sixty-four million, six hundred seven thousand, five hundred seventy-three".