13825891 has 8 divisors (see below), whose sum is σ = 14094864. Its totient is φ = 13559520.

The previous prime is 13825873. The next prime is 13825909. The reversal of 13825891 is 19852831.

It is an interprime number because it is at equal distance from previous prime (13825873) and next prime (13825909).

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

It is a cyclic number.

It is not a de Polignac number, because 13825891 - 2¹⁷ = 13694819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13825891.

It is not an unprimeable number, because it can be changed into a prime (13825831) 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, 12501 + ... + 13561.

It is an arithmetic number, because the mean of its divisors is an integer number (1761858).

Almost surely, 2^13825891 is an apocalyptic number.

13825891 is a deficient number, since it is larger than the sum of its proper divisors (268973).

13825891 is a wasteful number, since it uses less digits than its factorization.

13825891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its digits is 17280, while the sum is 37.

The square root of 13825891 is about 3718.3183026739. The cubic root of 13825891 is about 240.0109427881.

The spelling of 13825891 in words is "thirteen million, eight hundred twenty-five thousand, eight hundred ninety-one".