13955689 has 16 divisors (see below), whose sum is σ = 15676416. Its totient is φ = 12317200.

The previous prime is 13955659. The next prime is 13955707. The reversal of 13955689 is 98655931.

13955689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13955689 - 2¹⁵ = 13922921 is a prime.

It is a super-2 number, since 2×13955689² = 389522510929442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13955659) 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 15 ways as a sum of consecutive naturals, for example, 83484 + ... + 83650.

It is an arithmetic number, because the mean of its divisors is an integer number (979776).

Almost surely, 2^13955689 is an apocalyptic number.

It is an amenable number.

13955689 is a deficient number, since it is larger than the sum of its proper divisors (1720727).

13955689 is a wasteful number, since it uses less digits than its factorization.

13955689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356.

The product of its digits is 291600, while the sum is 46.

The square root of 13955689 is about 3735.7313875599. The cubic root of 13955689 is about 240.7596819305.

The spelling of 13955689 in words is "thirteen million, nine hundred fifty-five thousand, six hundred eighty-nine".