13990223 has 4 divisors (see below), whose sum is σ = 15066408. Its totient is φ = 12914040.

The previous prime is 13990219. The next prime is 13990241. The reversal of 13990223 is 32209931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13990223 - 2² = 13990219 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 (13990253) 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, 538073 + ... + 538098.

It is an arithmetic number, because the mean of its divisors is an integer number (3766602).

Almost surely, 2^13990223 is an apocalyptic number.

13990223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13990223 is a deficient number, since it is larger than the sum of its proper divisors (1076185).

13990223 is a wasteful number, since it uses less digits than its factorization.

13990223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076184.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13990223 is about 3740.3506520111. The cubic root of 13990223 is about 240.9581086832.

The spelling of 13990223 in words is "thirteen million, nine hundred ninety thousand, two hundred twenty-three".