13669874 has 4 divisors (see below), whose sum is σ = 20504814. Its totient is φ = 6834936.

The previous prime is 13669861. The next prime is 13669891. The reversal of 13669874 is 47896631.

13669874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12780625 + 889249 = 3575^2 + 943^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3417467 + ... + 3417470.

Almost surely, 2^13669874 is an apocalyptic number.

13669874 is a deficient number, since it is larger than the sum of its proper divisors (6834940).

13669874 is an equidigital number, since it uses as much as digits as its factorization.

13669874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834939.

The product of its digits is 217728, while the sum is 44.

The square root of 13669874 is about 3697.2792699497. The cubic root of 13669874 is about 239.1047316765.

The spelling of 13669874 in words is "thirteen million, six hundred sixty-nine thousand, eight hundred seventy-four".