6365664 has 108 divisors (see below), whose sum is σ = 19518408. Its totient is φ = 1964160.

The previous prime is 6365663. The next prime is 6365669. The reversal of 6365664 is 4665636.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6365663) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 205329 + ... + 205359.

It is an arithmetic number, because the mean of its divisors is an integer number (180726).

Almost surely, 2^6365664 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 6365664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9759204).

6365664 is an abundant number, since it is smaller than the sum of its proper divisors (13152744).

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

6365664 is a wasteful number, since it uses less digits than its factorization.

6365664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 59 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 6365664 is about 2523.0267537226. The cubic root of 6365664 is about 185.3309294698.

The spelling of 6365664 in words is "six million, three hundred sixty-five thousand, six hundred sixty-four".