13866874 has 16 divisors (see below), whose sum is σ = 23956416. Its totient is φ = 5896800.

The previous prime is 13866869. The next prime is 13866877. The reversal of 13866874 is 47866831.

It is a self number, because there is not a number n which added to its sum of digits gives 13866874.

It is not an unprimeable number, because it can be changed into a prime (13866877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1947 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (1497276).

Almost surely, 2^13866874 is an apocalyptic number.

13866874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13866874 is a deficient number, since it is larger than the sum of its proper divisors (10089542).

13866874 is a wasteful number, since it uses less digits than its factorization.

13866874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7701.

The product of its digits is 193536, while the sum is 43.

The square root of 13866874 is about 3723.8251838667. The cubic root of 13866874 is about 240.2478573658.

Subtracting from 13866874 its sum of digits (43), we obtain a palindrome (13866831).

The spelling of 13866874 in words is "thirteen million, eight hundred sixty-six thousand, eight hundred seventy-four".