13354639 has 8 divisors (see below), whose sum is σ = 14469840. Its totient is φ = 12276096.

The previous prime is 13354619. The next prime is 13354657. The reversal of 13354639 is 93645331.

13354639 = T₃₈₉ + T₃₉₀ + ... + T₅₁₇.

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 13354639 - 2¹⁹ = 12830351 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 (13354619) 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, 8404 + ... + 9865.

It is an arithmetic number, because the mean of its divisors is an integer number (1808730).

Almost surely, 2^13354639 is an apocalyptic number.

13354639 is a deficient number, since it is larger than the sum of its proper divisors (1115201).

13354639 is a wasteful number, since it uses less digits than its factorization.

13354639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18329.

The product of its digits is 29160, while the sum is 34.

The square root of 13354639 is about 3654.3999507443. The cubic root of 13354639 is about 237.2524563898.

The spelling of 13354639 in words is "thirteen million, three hundred fifty-four thousand, six hundred thirty-nine".