13989355 has 8 divisors (see below), whose sum is σ = 17017632. Its totient is φ = 11037888.

The previous prime is 13989341. The next prime is 13989361. The reversal of 13989355 is 55398931.

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 13989355 - 2¹⁵ = 13956587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18799 + ... + 19528.

It is an arithmetic number, because the mean of its divisors is an integer number (2127204).

Almost surely, 2^13989355 is an apocalyptic number.

13989355 is a deficient number, since it is larger than the sum of its proper divisors (3028277).

13989355 is an equidigital number, since it uses as much as digits as its factorization.

13989355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38405.

The product of its digits is 145800, while the sum is 43.

The square root of 13989355 is about 3740.2346183094. The cubic root of 13989355 is about 240.9531252992.

The spelling of 13989355 in words is "thirteen million, nine hundred eighty-nine thousand, three hundred fifty-five".