13665707 has 8 divisors (see below), whose sum is σ = 14944512. Its totient is φ = 12393000.

The previous prime is 13665697. The next prime is 13665709. The reversal of 13665707 is 70756631.

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 13665707 - 2⁶ = 13665643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13665709) 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 7 ways as a sum of consecutive naturals, for example, 4082 + ... + 6632.

It is an arithmetic number, because the mean of its divisors is an integer number (1868064).

Almost surely, 2^13665707 is an apocalyptic number.

13665707 is a deficient number, since it is larger than the sum of its proper divisors (1278805).

13665707 is a wasteful number, since it uses less digits than its factorization.

13665707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 13665707 is about 3696.7157045139. The cubic root of 13665707 is about 239.0804337038.

The spelling of 13665707 in words is "thirteen million, six hundred sixty-five thousand, seven hundred seven".