13773814 has 4 divisors (see below), whose sum is σ = 20660724. Its totient is φ = 6886906.

The previous prime is 13773797. The next prime is 13773817. The reversal of 13773814 is 41837731.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13773814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13773817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3443452 + ... + 3443455.

It is an arithmetic number, because the mean of its divisors is an integer number (5165181).

Almost surely, 2^13773814 is an apocalyptic number.

13773814 is a deficient number, since it is larger than the sum of its proper divisors (6886910).

13773814 is an equidigital number, since it uses as much as digits as its factorization.

13773814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886909.

The product of its digits is 14112, while the sum is 34.

The square root of 13773814 is about 3711.3089335166. The cubic root of 13773814 is about 239.7092195964.

The spelling of 13773814 in words is "thirteen million, seven hundred seventy-three thousand, eight hundred fourteen".