64083564 has 18 divisors (see below), whose sum is σ = 161989100. Its totient is φ = 21361176.

The previous prime is 64083529. The next prime is 64083577. The reversal of 64083564 is 46538046.

64083564 is a `hidden beast` number, since 640 + 8 + 3 + 5 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1780099 = 64083564 / (6 + 4 + 0 + 8 + 3 + 5 + 6 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 890014 + ... + 890085.

Almost surely, 2^64083564 is an apocalyptic number.

It is an amenable number.

64083564 is an abundant number, since it is smaller than the sum of its proper divisors (97905536).

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

64083564 is a wasteful number, since it uses less digits than its factorization.

64083564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780109 (or 1780104 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 64083564 is about 8005.2210462922. The cubic root of 64083564 is about 400.1740159518.

The spelling of 64083564 in words is "sixty-four million, eighty-three thousand, five hundred sixty-four".