64683616 has 24 divisors (see below), whose sum is σ = 128137464. Its totient is φ = 32140800.

The previous prime is 64683611. The next prime is 64683617. The reversal of 64683616 is 61638646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64683611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985 + ... + 11416.

It is an arithmetic number, because the mean of its divisors is an integer number (5339061).

Almost surely, 2^64683616 is an apocalyptic number.

It is an amenable number.

64683616 is a deficient number, since it is larger than the sum of its proper divisors (63453848).

64683616 is a wasteful number, since it uses less digits than its factorization.

64683616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12574 (or 12566 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 64683616 is about 8042.6125108698. The cubic root of 64683616 is about 401.4191590146.

The spelling of 64683616 in words is "sixty-four million, six hundred eighty-three thousand, six hundred sixteen".