13485663 has 16 divisors (see below), whose sum is σ = 20405760. Its totient is φ = 8798328.

The previous prime is 13485623. The next prime is 13485671. The reversal of 13485663 is 36658431.

It is a de Polignac number, because none of the positive numbers 2^k-13485663 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13485623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4045 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (1275360).

Almost surely, 2^13485663 is an apocalyptic number.

13485663 is a deficient number, since it is larger than the sum of its proper divisors (6920097).

13485663 is a wasteful number, since it uses less digits than its factorization.

13485663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10683 (or 10677 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 13485663 is about 3672.2830773240. The cubic root of 13485663 is about 238.0258369427.

The spelling of 13485663 in words is "thirteen million, four hundred eighty-five thousand, six hundred sixty-three".