13816774 has 4 divisors (see below), whose sum is σ = 20725164. Its totient is φ = 6908386.

The previous prime is 13816763. The next prime is 13816787. The reversal of 13816774 is 47761831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47761831 = 13 ⋅3673987.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3454192 + ... + 3454195.

It is an arithmetic number, because the mean of its divisors is an integer number (5181291).

Almost surely, 2^13816774 is an apocalyptic number.

13816774 is a deficient number, since it is larger than the sum of its proper divisors (6908390).

13816774 is an equidigital number, since it uses as much as digits as its factorization.

13816774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908389.

The product of its digits is 28224, while the sum is 37.

The square root of 13816774 is about 3717.0921430602. The cubic root of 13816774 is about 239.9581755821.

The spelling of 13816774 in words is "thirteen million, eight hundred sixteen thousand, seven hundred seventy-four".