13828919 has 8 divisors (see below), whose sum is σ = 15174432. Its totient is φ = 12523680.

The previous prime is 13828897. The next prime is 13828921. The reversal of 13828919 is 91982831.

13828919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13828919 - 2¹⁶ = 13763383 is a prime.

It is a super-2 number, since 2×13828919² = 382478001417122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13828949) 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, 9347 + ... + 10724.

It is an arithmetic number, because the mean of its divisors is an integer number (1896804).

Almost surely, 2^13828919 is an apocalyptic number.

13828919 is a deficient number, since it is larger than the sum of its proper divisors (1345513).

13828919 is a wasteful number, since it uses less digits than its factorization.

13828919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20137.

The product of its digits is 31104, while the sum is 41.

The square root of 13828919 is about 3718.7254537005. The cubic root of 13828919 is about 240.0284630594.

It can be divided in two parts, 1382 and 8919, that added together give a palindrome (10301).

The spelling of 13828919 in words is "thirteen million, eight hundred twenty-eight thousand, nine hundred nineteen".