13973886 has 12 divisors (see below), whose sum is σ = 30276792. Its totient is φ = 4657956.

The previous prime is 13973837. The next prime is 13973887. The reversal of 13973886 is 68837931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13973887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 388146 + ... + 388181.

It is an arithmetic number, because the mean of its divisors is an integer number (2523066).

Almost surely, 2^13973886 is an apocalyptic number.

13973886 is an abundant number, since it is smaller than the sum of its proper divisors (16302906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13973886 is a wasteful number, since it uses less digits than its factorization.

13973886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776335 (or 776332 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 13973886 is about 3738.1661279296. The cubic root of 13973886 is about 240.8642796832.

The spelling of 13973886 in words is "thirteen million, nine hundred seventy-three thousand, eight hundred eighty-six".