64513628 has 6 divisors (see below), whose sum is σ = 112898856. Its totient is φ = 32256812.

The previous prime is 64513613. The next prime is 64513639. The reversal of 64513628 is 82631546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064200 + ... + 8064207.

It is an arithmetic number, because the mean of its divisors is an integer number (18816476).

Almost surely, 2^64513628 is an apocalyptic number.

It is an amenable number.

64513628 is a deficient number, since it is larger than the sum of its proper divisors (48385228).

64513628 is a wasteful number, since it uses less digits than its factorization.

64513628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16128411 (or 16128409 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 64513628 is about 8032.0375995136. The cubic root of 64513628 is about 401.0672084663.

The spelling of 64513628 in words is "sixty-four million, five hundred thirteen thousand, six hundred twenty-eight".