13206985 has 16 divisors (see below), whose sum is σ = 17455680. Its totient is φ = 9512640.

The previous prime is 13206979. The next prime is 13207001. The reversal of 13206985 is 58960231.

It is not a de Polignac number, because 13206985 - 2¹³ = 13198793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13206985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4894 + ... + 7096.

It is an arithmetic number, because the mean of its divisors is an integer number (1090980).

Almost surely, 2^13206985 is an apocalyptic number.

It is an amenable number.

13206985 is a deficient number, since it is larger than the sum of its proper divisors (4248695).

13206985 is a wasteful number, since it uses less digits than its factorization.

13206985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 13206985 is about 3634.1415767689. The cubic root of 13206985 is about 236.3748292844.

The spelling of 13206985 in words is "thirteen million, two hundred six thousand, nine hundred eighty-five".