13985849 has 4 divisors (see below), whose sum is σ = 14808564. Its totient is φ = 13163136.

The previous prime is 13985833. The next prime is 13985857. The reversal of 13985849 is 94858931.

13985849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94858931 = 1063 ⋅89237.

It can be written as a sum of positive squares in 2 ways, for example, as 11854249 + 2131600 = 3443^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 13985849 - 2⁴ = 13985833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13985819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411332 + ... + 411365.

It is an arithmetic number, because the mean of its divisors is an integer number (3702141).

Almost surely, 2^13985849 is an apocalyptic number.

It is an amenable number.

13985849 is a deficient number, since it is larger than the sum of its proper divisors (822715).

13985849 is an equidigital number, since it uses as much as digits as its factorization.

13985849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822714.

The product of its digits is 311040, while the sum is 47.

The square root of 13985849 is about 3739.7659017644. The cubic root of 13985849 is about 240.9329944630.

The spelling of 13985849 in words is "thirteen million, nine hundred eighty-five thousand, eight hundred forty-nine".