13624641 has 12 divisors (see below), whose sum is σ = 19823440. Its totient is φ = 9016920.

The previous prime is 13624627. The next prime is 13624649. The reversal of 13624641 is 14642631.

13624641 is a `hidden beast` number, since 13 + 6 + 2 + 4 + 641 = 666.

It is not a de Polignac number, because 13624641 - 2¹⁷ = 13493569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13624649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4195 + ... + 6696.

Almost surely, 2^13624641 is an apocalyptic number.

It is an amenable number.

13624641 is a deficient number, since it is larger than the sum of its proper divisors (6198799).

13624641 is a wasteful number, since it uses less digits than its factorization.

13624641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11036 (or 11033 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13624641 is about 3691.1571356419. The cubic root of 13624641 is about 238.8407113069.

The spelling of 13624641 in words is "thirteen million, six hundred twenty-four thousand, six hundred forty-one".