13983785 has 8 divisors (see below), whose sum is σ = 17097480. Its totient is φ = 10975744.

The previous prime is 13983779. The next prime is 13983797. The reversal of 13983785 is 58738931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1338649 + 12645136 = 1157^2 + 3556^2 .

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 13983785 - 2¹² = 13979689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26120 + ... + 26649.

It is an arithmetic number, because the mean of its divisors is an integer number (2137185).

Almost surely, 2^13983785 is an apocalyptic number.

It is an amenable number.

13983785 is a deficient number, since it is larger than the sum of its proper divisors (3113695).

13983785 is an equidigital number, since it uses as much as digits as its factorization.

13983785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52827.

The product of its digits is 181440, while the sum is 44.

The square root of 13983785 is about 3739.4899384809. The cubic root of 13983785 is about 240.9211417642.

The spelling of 13983785 in words is "thirteen million, nine hundred eighty-three thousand, seven hundred eighty-five".