13667956 has 12 divisors (see below), whose sum is σ = 23974468. Its totient is φ = 6818112.

The previous prime is 13667939. The next prime is 13667963. The reversal of 13667956 is 65976631.

It can be written as a sum of positive squares in 2 ways, for example, as 12531600 + 1136356 = 3540^2 + 1066^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 5.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1911 + ... + 5566.

Almost surely, 2^13667956 is an apocalyptic number.

It is an amenable number.

13667956 is a deficient number, since it is larger than the sum of its proper divisors (10306512).

13667956 is a wasteful number, since it uses less digits than its factorization.

13667956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938 (or 7936 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 13667956 is about 3697.0198809311. The cubic root of 13667956 is about 239.0935483419.

The spelling of 13667956 in words is "thirteen million, six hundred sixty-seven thousand, nine hundred fifty-six".