13906669 has 8 divisors (see below), whose sum is σ = 15916608. Its totient is φ = 11902560.

The previous prime is 13906657. The next prime is 13906681. The reversal of 13906669 is 96660931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13906657) and next prime (13906681).

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 13906669 - 2⁵ = 13906637 is a prime.

It is a super-2 number, since 2×13906669² = 386790885351122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13906639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6774 + ... + 8584.

It is an arithmetic number, because the mean of its divisors is an integer number (1989576).

Almost surely, 2^13906669 is an apocalyptic number.

It is an amenable number.

13906669 is a deficient number, since it is larger than the sum of its proper divisors (2009939).

13906669 is a wasteful number, since it uses less digits than its factorization.

13906669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 13906669 is about 3729.1646517685. The cubic root of 13906669 is about 240.4774580757.

The spelling of 13906669 in words is "thirteen million, nine hundred six thousand, six hundred sixty-nine".