64613648 has 20 divisors (see below), whose sum is σ = 136570128. Its totient is φ = 29369760.

The previous prime is 64613629. The next prime is 64613657. The reversal of 64613648 is 84631646.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183386 + ... + 183737.

Almost surely, 2^64613648 is an apocalyptic number.

It is an amenable number.

64613648 is an abundant number, since it is smaller than the sum of its proper divisors (71956480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64613648 is a wasteful number, since it uses less digits than its factorization.

64613648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367142 (or 367136 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 64613648 is about 8038.2615035840. The cubic root of 64613648 is about 401.2743689809.

The spelling of 64613648 in words is "sixty-four million, six hundred thirteen thousand, six hundred forty-eight".