13393664 has 36 divisors (see below), whose sum is σ = 27029856. Its totient is φ = 6623232.

The previous prime is 13393661. The next prime is 13393687. The reversal of 13393664 is 46639331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13393661) 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, 28697 + ... + 29159.

Almost surely, 2^13393664 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 13393664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13514928).

13393664 is an abundant number, since it is smaller than the sum of its proper divisors (13636192).

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

13393664 is an equidigital number, since it uses as much as digits as its factorization.

13393664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 578 counting only the distinct ones).

The product of its digits is 34992, while the sum is 35.

The square root of 13393664 is about 3659.7355095690. The cubic root of 13393664 is about 237.4833317942.

The spelling of 13393664 in words is "thirteen million, three hundred ninety-three thousand, six hundred sixty-four".