13426621 has 8 divisors (see below), whose sum is σ = 14796320. Its totient is φ = 12105072.

The previous prime is 13426613. The next prime is 13426657. The reversal of 13426621 is 12662431.

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 13426621 - 2³ = 13426613 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 (13426601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11451 + ... + 12568.

It is an arithmetic number, because the mean of its divisors is an integer number (1849540).

Almost surely, 2^13426621 is an apocalyptic number.

It is an amenable number.

13426621 is a deficient number, since it is larger than the sum of its proper divisors (1369699).

13426621 is a wasteful number, since it uses less digits than its factorization.

13426621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24075.

The product of its digits is 1728, while the sum is 25.

The square root of 13426621 is about 3664.2353909104. The cubic root of 13426621 is about 237.6779593268.

The spelling of 13426621 in words is "thirteen million, four hundred twenty-six thousand, six hundred twenty-one".