13664453 has 8 divisors (see below), whose sum is σ = 15000096. Its totient is φ = 12344400.

The previous prime is 13664429. The next prime is 13664467. The reversal of 13664453 is 35446631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13664453 - 2⁶ = 13664389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018 + ... + 5603.

It is an arithmetic number, because the mean of its divisors is an integer number (1875012).

Almost surely, 2^13664453 is an apocalyptic number.

It is an amenable number.

13664453 is a deficient number, since it is larger than the sum of its proper divisors (1335643).

13664453 is a wasteful number, since it uses less digits than its factorization.

13664453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795.

The product of its digits is 25920, while the sum is 32.

The square root of 13664453 is about 3696.5460906094. The cubic root of 13664453 is about 239.0731206041.

It can be divided in two parts, 13 and 664453, that added together give a palindrome (664466).

The spelling of 13664453 in words is "thirteen million, six hundred sixty-four thousand, four hundred fifty-three".