13664207 has 8 divisors (see below), whose sum is σ = 13916784. Its totient is φ = 13413888.

The previous prime is 13664159. The next prime is 13664219. The reversal of 13664207 is 70246631.

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 13664207 - 2⁶ = 13664143 is a prime.

It is a super-3 number, since 3×13664207³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13664207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664227) 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, 15593 + ... + 16445.

It is an arithmetic number, because the mean of its divisors is an integer number (1739598).

Almost surely, 2^13664207 is an apocalyptic number.

13664207 is a deficient number, since it is larger than the sum of its proper divisors (252577).

13664207 is an equidigital number, since it uses as much as digits as its factorization.

13664207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 13664207 is about 3696.5128161552. The cubic root of 13664207 is about 239.0716859244.

The spelling of 13664207 in words is "thirteen million, six hundred sixty-four thousand, two hundred seven".