64368529 has 9 divisors (see below), whose sum is σ = 65870779. Its totient is φ = 62900320.

The previous prime is 64368457. The next prime is 64368539. The reversal of 64368529 is 92586346.

The square root of 64368529 is 8023.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 63234304 = 1065^2 + 7952^2 .

It is not a de Polignac number, because 64368529 - 2¹⁷ = 64237457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64368539) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 569577 + ... + 569689.

Almost surely, 2^64368529 is an apocalyptic number.

64368529 is the 8023-rd square number.

64368529 is the 4012-nd centered octagonal number.

It is an amenable number.

64368529 is a deficient number, since it is larger than the sum of its proper divisors (1502250).

64368529 is an frugal number, since it uses more digits than its factorization.

64368529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 184 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The cubic root of 64368529 is about 400.7662997742.

The spelling of 64368529 in words is "sixty-four million, three hundred sixty-eight thousand, five hundred twenty-nine".