64764529 has 2 divisors, whose sum is σ = 64764530. Its totient is φ = 64764528.

The previous prime is 64764523. The next prime is 64764563. The reversal of 64764529 is 92546746.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58752225 + 6012304 = 7665^2 + 2452^2 .

It is a cyclic number.

It is not a de Polignac number, because 64764529 - 2⁹ = 64764017 is a prime.

It is not a weakly prime, because it can be changed into another prime (64764523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32382264 + 32382265.

It is an arithmetic number, because the mean of its divisors is an integer number (32382265).

Almost surely, 2^64764529 is an apocalyptic number.

It is an amenable number.

64764529 is a deficient number, since it is larger than the sum of its proper divisors (1).

64764529 is an equidigital number, since it uses as much as digits as its factorization.

64764529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 64764529 is about 8047.6412072110. The cubic root of 64764529 is about 401.5864682278.

The spelling of 64764529 in words is "sixty-four million, seven hundred sixty-four thousand, five hundred twenty-nine".