13664695 has 16 divisors (see below), whose sum is σ = 18195840. Its totient is φ = 9767200.

The previous prime is 13664657. The next prime is 13664711. The reversal of 13664695 is 59646631.

It is not a de Polignac number, because 13664695 - 2¹⁷ = 13533623 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1140 + ... + 5350.

It is an arithmetic number, because the mean of its divisors is an integer number (1137240).

Almost surely, 2^13664695 is an apocalyptic number.

13664695 is a deficient number, since it is larger than the sum of its proper divisors (4531145).

13664695 is a wasteful number, since it uses less digits than its factorization.

13664695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286.

The product of its digits is 116640, while the sum is 40.

The square root of 13664695 is about 3696.5788237234. The cubic root of 13664695 is about 239.0745319389.

The spelling of 13664695 in words is "thirteen million, six hundred sixty-four thousand, six hundred ninety-five".