64967528 has 8 divisors (see below), whose sum is σ = 121814130. Its totient is φ = 32483760.

The previous prime is 64967527. The next prime is 64967531. The reversal of 64967528 is 82576946.

It can be written as a sum of positive squares in only one way, i.e., 64673764 + 293764 = 8042^2 + 542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (64967521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060463 + ... + 4060478.

Almost surely, 2^64967528 is an apocalyptic number.

It is an amenable number.

64967528 is a deficient number, since it is larger than the sum of its proper divisors (56846602).

64967528 is a wasteful number, since it uses less digits than its factorization.

64967528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120947 (or 8120943 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 64967528 is about 8060.2436687733. The cubic root of 64967528 is about 402.0056103439.

The spelling of 64967528 in words is "sixty-four million, nine hundred sixty-seven thousand, five hundred twenty-eight".