13047664 has 40 divisors (see below), whose sum is σ = 29213408. Its totient is φ = 5529600.

The previous prime is 13047659. The next prime is 13047691. The reversal of 13047664 is 46674031.

13047664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10264 + ... + 11464.

Almost surely, 2^13047664 is an apocalyptic number.

13047664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13047664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14606704).

13047664 is an abundant number, since it is smaller than the sum of its proper divisors (16165744).

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

13047664 is a wasteful number, since it uses less digits than its factorization.

13047664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 13047664 is about 3612.1550354324. The cubic root of 13047664 is about 235.4204875495.

The spelling of 13047664 in words is "thirteen million, forty-seven thousand, six hundred sixty-four".