13424621 has 8 divisors (see below), whose sum is σ = 16150080. Its totient is φ = 10901088.

The previous prime is 13424591. The next prime is 13424623. The reversal of 13424621 is 12642431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13424621 - 2²² = 9230317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13424623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50336 + ... + 50601.

It is an arithmetic number, because the mean of its divisors is an integer number (2018760).

Almost surely, 2^13424621 is an apocalyptic number.

It is an amenable number.

13424621 is a deficient number, since it is larger than the sum of its proper divisors (2725459).

13424621 is a wasteful number, since it uses less digits than its factorization.

13424621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100963.

The product of its digits is 1152, while the sum is 23.

The square root of 13424621 is about 3663.9624725152. The cubic root of 13424621 is about 237.6661574117. Note that the first 3 decimals are identical.

The spelling of 13424621 in words is "thirteen million, four hundred twenty-four thousand, six hundred twenty-one".