13223878 has 8 divisors (see below), whose sum is σ = 19851840. Its totient is φ = 6606600.

The previous prime is 13223863. The next prime is 13223879. The reversal of 13223878 is 87832231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223879) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2208 + ... + 5596.

It is an arithmetic number, because the mean of its divisors is an integer number (2481480).

Almost surely, 2^13223878 is an apocalyptic number.

13223878 is a deficient number, since it is larger than the sum of its proper divisors (6627962).

13223878 is a wasteful number, since it uses less digits than its factorization.

13223878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342.

The product of its digits is 16128, while the sum is 34.

The square root of 13223878 is about 3636.4650417679. The cubic root of 13223878 is about 236.4755683677.

The spelling of 13223878 in words is "thirteen million, two hundred twenty-three thousand, eight hundred seventy-eight".