13990311 has 12 divisors (see below), whose sum is σ = 20240688. Its totient is φ = 9311904.

The previous prime is 13990283. The next prime is 13990313. The reversal of 13990311 is 11309931.

It is not a de Polignac number, because 13990311 - 2⁶ = 13990247 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13990313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10086 + ... + 11388.

It is an arithmetic number, because the mean of its divisors is an integer number (1686724).

Almost surely, 2^13990311 is an apocalyptic number.

13990311 is a deficient number, since it is larger than the sum of its proper divisors (6250377).

13990311 is a wasteful number, since it uses less digits than its factorization.

13990311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502 (or 2499 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 13990311 is about 3740.3624155956. The cubic root of 13990311 is about 240.9586138996.

The spelling of 13990311 in words is "thirteen million, nine hundred ninety thousand, three hundred eleven".