13664495 has 24 divisors (see below), whose sum is σ = 18042336. Its totient is φ = 9929088.

The previous prime is 13664491. The next prime is 13664527. The reversal of 13664495 is 59446631.

13664495 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13664495 - 2² = 13664491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86957 + ... + 87113.

It is an arithmetic number, because the mean of its divisors is an integer number (751764).

Almost surely, 2^13664495 is an apocalyptic number.

13664495 is a deficient number, since it is larger than the sum of its proper divisors (4377841).

13664495 is a wasteful number, since it uses less digits than its factorization.

13664495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 278 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 13664495 is about 3696.5517715839. The cubic root of 13664495 is about 239.0733655477.

The spelling of 13664495 in words is "thirteen million, six hundred sixty-four thousand, four hundred ninety-five".