13821467 has 12 divisors (see below), whose sum is σ = 15353520. Its totient is φ = 12431760.

The previous prime is 13821463. The next prime is 13821473. The reversal of 13821467 is 76412831.

13821467 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13821467 - 2² = 13821463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13821463) 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 11 ways as a sum of consecutive naturals, for example, 11909 + ... + 13017.

It is an arithmetic number, because the mean of its divisors is an integer number (1279460).

Almost surely, 2^13821467 is an apocalyptic number.

13821467 is a deficient number, since it is larger than the sum of its proper divisors (1532053).

13821467 is a wasteful number, since it uses less digits than its factorization.

13821467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1223 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 13821467 is about 3717.7233624895. The cubic root of 13821467 is about 239.9853405398.

The spelling of 13821467 in words is "thirteen million, eight hundred twenty-one thousand, four hundred sixty-seven".