13947273 has 12 divisors (see below), whose sum is σ = 21206640. Its totient is φ = 8808696.

The previous prime is 13947247. The next prime is 13947277. The reversal of 13947273 is 37274931.

It is not a de Polignac number, because 13947273 - 2⁶ = 13947209 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13947277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40611 + ... + 40952.

It is an arithmetic number, because the mean of its divisors is an integer number (1767220).

Almost surely, 2^13947273 is an apocalyptic number.

It is an amenable number.

13947273 is a deficient number, since it is larger than the sum of its proper divisors (7259367).

13947273 is a wasteful number, since it uses less digits than its factorization.

13947273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81588 (or 81585 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 13947273 is about 3734.6047983689. The cubic root of 13947273 is about 240.7112753649.

The spelling of 13947273 in words is "thirteen million, nine hundred forty-seven thousand, two hundred seventy-three".