64530628 has 6 divisors (see below), whose sum is σ = 112928606. Its totient is φ = 32265312.

The previous prime is 64530541. The next prime is 64530629. The reversal of 64530628 is 82603546.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46485124 + 18045504 = 6818^2 + 4248^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64530593 and 64530602.

It is not an unprimeable number, because it can be changed into a prime (64530629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066325 + ... + 8066332.

Almost surely, 2^64530628 is an apocalyptic number.

It is an amenable number.

64530628 is a deficient number, since it is larger than the sum of its proper divisors (48397978).

64530628 is a wasteful number, since it uses less digits than its factorization.

64530628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16132661 (or 16132659 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 64530628 is about 8033.0957917854. The cubic root of 64530628 is about 401.1024338079.

The spelling of 64530628 in words is "sixty-four million, five hundred thirty thousand, six hundred twenty-eight".