13890335 has 4 divisors (see below), whose sum is σ = 16668408. Its totient is φ = 11112264.

The previous prime is 13890329. The next prime is 13890337. The reversal of 13890335 is 53309831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53309831 = 1553 ⋅34327.

It is a cyclic number.

It is not a de Polignac number, because 13890335 - 2²² = 9696031 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 (13890337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389029 + ... + 1389038.

It is an arithmetic number, because the mean of its divisors is an integer number (4167102).

Almost surely, 2^13890335 is an apocalyptic number.

13890335 is a deficient number, since it is larger than the sum of its proper divisors (2778073).

13890335 is an equidigital number, since it uses as much as digits as its factorization.

13890335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778072.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 13890335 is about 3726.9739736145. The cubic root of 13890335 is about 240.3832707076.

The spelling of 13890335 in words is "thirteen million, eight hundred ninety thousand, three hundred thirty-five".