13969636 has 24 divisors (see below), whose sum is σ = 25854080. Its totient is φ = 6586272.

The previous prime is 13969621. The next prime is 13969667. The reversal of 13969636 is 63696931.

It is a junction number, because it is equal to n+sod(n) for n = 13969592 and 13969601.

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 7 ways as a sum of consecutive naturals, for example, 29941 + ... + 30403.

Almost surely, 2^13969636 is an apocalyptic number.

It is an amenable number.

13969636 is a deficient number, since it is larger than the sum of its proper divisors (11884444).

13969636 is a wasteful number, since it uses less digits than its factorization.

13969636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 881 counting only the distinct ones).

The product of its digits is 157464, while the sum is 43.

The square root of 13969636 is about 3737.5976241431. The cubic root of 13969636 is about 240.8398584882.

The spelling of 13969636 in words is "thirteen million, nine hundred sixty-nine thousand, six hundred thirty-six".