13985563 has 8 divisors (see below), whose sum is σ = 14169600. Its totient is φ = 13803048.

The previous prime is 13985561. The next prime is 13985567. The reversal of 13985563 is 36558931.

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 13985563 - 2¹ = 13985561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13985561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38778 + ... + 39136.

It is an arithmetic number, because the mean of its divisors is an integer number (1771200).

Almost surely, 2^13985563 is an apocalyptic number.

13985563 is a deficient number, since it is larger than the sum of its proper divisors (184037).

13985563 is a wasteful number, since it uses less digits than its factorization.

13985563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its digits is 97200, while the sum is 40.

The square root of 13985563 is about 3739.7276638814. The cubic root of 13985563 is about 240.9313521528.

The spelling of 13985563 in words is "thirteen million, nine hundred eighty-five thousand, five hundred sixty-three".