13969556 has 24 divisors (see below), whose sum is σ = 25643520. Its totient is φ = 6646112.

The previous prime is 13969537. The next prime is 13969559. The reversal of 13969556 is 65596931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13969559) 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, 28925 + ... + 29403.

It is an arithmetic number, because the mean of its divisors is an integer number (1068480).

Almost surely, 2^13969556 is an apocalyptic number.

It is an amenable number.

13969556 is a deficient number, since it is larger than the sum of its proper divisors (11673964).

13969556 is a wasteful number, since it uses less digits than its factorization.

13969556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 821 counting only the distinct ones).

The product of its digits is 218700, while the sum is 44.

The square root of 13969556 is about 3737.5869220662. The cubic root of 13969556 is about 240.8393987476.

The spelling of 13969556 in words is "thirteen million, nine hundred sixty-nine thousand, five hundred fifty-six".