13982985 has 12 divisors (see below), whose sum is σ = 24237252. Its totient is φ = 7457568.

The previous prime is 13982977. The next prime is 13982987. The reversal of 13982985 is 58928931.

It is a happy number.

13982985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10732176 + 3250809 = 3276^2 + 1803^2 .

It is not a de Polignac number, because 13982985 - 2³ = 13982977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 310733 = 13982985 / (1 + 3 + 9 + 8 + 2 + 9 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 13982985.

It is not an unprimeable number, because it can be changed into a prime (13982987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155322 + ... + 155411.

It is an arithmetic number, because the mean of its divisors is an integer number (2019771).

Almost surely, 2^13982985 is an apocalyptic number.

13982985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13982985 is a deficient number, since it is larger than the sum of its proper divisors (10254267).

13982985 is a wasteful number, since it uses less digits than its factorization.

13982985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310744 (or 310741 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 13982985 is about 3739.3829704913. The cubic root of 13982985 is about 240.9165473813.

The spelling of 13982985 in words is "thirteen million, nine hundred eighty-two thousand, nine hundred eighty-five".