64488628 has 6 divisors (see below), whose sum is σ = 112855106. Its totient is φ = 32244312.

The previous prime is 64488623. The next prime is 64488629. The reversal of 64488628 is 82688446.

It can be written as a sum of positive squares in only one way, i.e., 49028004 + 15460624 = 7002^2 + 3932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64488623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8061075 + ... + 8061082.

Almost surely, 2^64488628 is an apocalyptic number.

It is an amenable number.

64488628 is a deficient number, since it is larger than the sum of its proper divisors (48366478).

64488628 is a wasteful number, since it uses less digits than its factorization.

64488628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16122161 (or 16122159 counting only the distinct ones).

The product of its digits is 589824, while the sum is 46.

The square root of 64488628 is about 8030.4811810999. The cubic root of 64488628 is about 401.0153952502.

The spelling of 64488628 in words is "sixty-four million, four hundred eighty-eight thousand, six hundred twenty-eight".