13873447 has 4 divisors (see below), whose sum is σ = 15855376. Its totient is φ = 11891520.

The previous prime is 13873441. The next prime is 13873463. The reversal of 13873447 is 74437831.

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

It is a cyclic number.

It is not a de Polignac number, because 13873447 - 2¹¹ = 13871399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13873441) 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, 990954 + ... + 990967.

It is an arithmetic number, because the mean of its divisors is an integer number (3963844).

Almost surely, 2^13873447 is an apocalyptic number.

13873447 is a deficient number, since it is larger than the sum of its proper divisors (1981929).

13873447 is an equidigital number, since it uses as much as digits as its factorization.

13873447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981928.

The product of its digits is 56448, while the sum is 37.

The square root of 13873447 is about 3724.7076395336. The cubic root of 13873447 is about 240.2858111186.

The spelling of 13873447 in words is "thirteen million, eight hundred seventy-three thousand, four hundred forty-seven".