13208963 has 4 divisors (see below), whose sum is σ = 13566000. Its totient is φ = 12851928.

The previous prime is 13208957. The next prime is 13208981. The reversal of 13208963 is 36980231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13208963 - 2¹⁸ = 12946819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13201963) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 178463 + ... + 178536.

It is an arithmetic number, because the mean of its divisors is an integer number (3391500).

Almost surely, 2^13208963 is an apocalyptic number.

13208963 is a deficient number, since it is larger than the sum of its proper divisors (357037).

13208963 is an equidigital number, since it uses as much as digits as its factorization.

13208963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357036.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 13208963 is about 3634.4137078764. The cubic root of 13208963 is about 236.3866292542.

The spelling of 13208963 in words is "thirteen million, two hundred eight thousand, nine hundred sixty-three".