13683963 has 16 divisors (see below), whose sum is σ = 19452960. Its totient is φ = 8526336.

The previous prime is 13683959. The next prime is 13683973. The reversal of 13683963 is 36938631.

It is not a de Polignac number, because 13683963 - 2² = 13683959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13683953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7153 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (1215810).

Almost surely, 2^13683963 is an apocalyptic number.

13683963 is a deficient number, since it is larger than the sum of its proper divisors (5768997).

13683963 is a wasteful number, since it uses less digits than its factorization.

13683963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886.

The product of its digits is 69984, while the sum is 39.

The square root of 13683963 is about 3699.1840992305. The cubic root of 13683963 is about 239.1868487436.

The spelling of 13683963 in words is "thirteen million, six hundred eighty-three thousand, nine hundred sixty-three".