13622439 has 8 divisors (see below), whose sum is σ = 18180720. Its totient is φ = 9072896.

The previous prime is 13622383. The next prime is 13622447. The reversal of 13622439 is 93422631.

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 13622439 - 2¹³ = 13614247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13622039) 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, 3799 + ... + 6455.

It is an arithmetic number, because the mean of its divisors is an integer number (2272590).

Almost surely, 2^13622439 is an apocalyptic number.

13622439 is a deficient number, since it is larger than the sum of its proper divisors (4558281).

13622439 is a wasteful number, since it uses less digits than its factorization.

13622439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369.

The product of its digits is 7776, while the sum is 30.

The square root of 13622439 is about 3690.8588431421. The cubic root of 13622439 is about 238.8278435530.

The spelling of 13622439 in words is "thirteen million, six hundred twenty-two thousand, four hundred thirty-nine".