13227816 has 32 divisors (see below), whose sum is σ = 37794240. Its totient is φ = 3779328.

The previous prime is 13227811. The next prime is 13227827. The reversal of 13227816 is 61872231.

13227816 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13227816² = 349950232259712, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13227811) 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, 39201 + ... + 39536.

It is an arithmetic number, because the mean of its divisors is an integer number (1181070).

Almost surely, 2^13227816 is an apocalyptic number.

It is an amenable number.

13227816 is an abundant number, since it is smaller than the sum of its proper divisors (24566424).

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

13227816 is a wasteful number, since it uses less digits than its factorization.

13227816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78753 (or 78749 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 13227816 is about 3637.0064613635. The cubic root of 13227816 is about 236.4990397570.

The spelling of 13227816 in words is "thirteen million, two hundred twenty-seven thousand, eight hundred sixteen".