13643674 has 16 divisors (see below), whose sum is σ = 22415616. Its totient is φ = 6176800.

The previous prime is 13643633. The next prime is 13643683. The reversal of 13643674 is 47634631.

13643674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13643674² = 372299680436552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5079 + ... + 7285.

It is an arithmetic number, because the mean of its divisors is an integer number (1400976).

Almost surely, 2^13643674 is an apocalyptic number.

13643674 is a deficient number, since it is larger than the sum of its proper divisors (8771942).

13643674 is a wasteful number, since it uses less digits than its factorization.

13643674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501.

The product of its digits is 36288, while the sum is 34.

The square root of 13643674 is about 3693.7344246711. The cubic root of 13643674 is about 238.9518760736.

The spelling of 13643674 in words is "thirteen million, six hundred forty-three thousand, six hundred seventy-four".