7389664 has 24 divisors (see below), whose sum is σ = 15051960. Its totient is φ = 3566976.

The previous prime is 7389661. The next prime is 7389703. The reversal of 7389664 is 4669837.

It is a happy number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 7389664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7389661) 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, 3054 + ... + 4909.

It is an arithmetic number, because the mean of its divisors is an integer number (627165).

Almost surely, 2^7389664 is an apocalyptic number.

It is an amenable number.

7389664 is an abundant number, since it is smaller than the sum of its proper divisors (7662296).

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

7389664 is a wasteful number, since it uses less digits than its factorization.

7389664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002 (or 7994 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 7389664 is about 2718.3936433122. The cubic root of 7389664 is about 194.7787453251.

The spelling of 7389664 in words is "seven million, three hundred eighty-nine thousand, six hundred sixty-four".