13986628 has 6 divisors (see below), whose sum is σ = 24476606. Its totient is φ = 6993312.

The previous prime is 13986619. The next prime is 13986649. The reversal of 13986628 is 82668931.

13986628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11819844 + 2166784 = 3438^2 + 1472^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1748325 + ... + 1748332.

Almost surely, 2^13986628 is an apocalyptic number.

It is an amenable number.

13986628 is a deficient number, since it is larger than the sum of its proper divisors (10489978).

13986628 is a wasteful number, since it uses less digits than its factorization.

13986628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496661 (or 3496659 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 13986628 is about 3739.8700512184. The cubic root of 13986628 is about 240.9374676349.

The spelling of 13986628 in words is "thirteen million, nine hundred eighty-six thousand, six hundred twenty-eight".