64353564 has 72 divisors (see below), whose sum is σ = 179328240. Its totient is φ = 19296000.

The previous prime is 64353539. The next prime is 64353577. The reversal of 64353564 is 46535346.

64353564 is a `hidden beast` number, since 6 + 43 + 53 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39192 + ... + 40800.

It is an arithmetic number, because the mean of its divisors is an integer number (2490670).

Almost surely, 2^64353564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64353564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89664120).

64353564 is an abundant number, since it is smaller than the sum of its proper divisors (114974676).

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

64353564 is a wasteful number, since it uses less digits than its factorization.

64353564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1726 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 64353564 is about 8022.0673146016. The cubic root of 64353564 is about 400.7352393962.

It can be divided in two parts, 6435 and 3564, that added together give a palindrome (9999).

The spelling of 64353564 in words is "sixty-four million, three hundred fifty-three thousand, five hundred sixty-four".