13287946 has 16 divisors (see below), whose sum is σ = 23310144. Its totient is φ = 5562144.

The previous prime is 13287941. The next prime is 13287947. The reversal of 13287946 is 64978231.

It is a junction number, because it is equal to n+sod(n) for n = 13287899 and 13287908.

It is not an unprimeable number, because it can be changed into a prime (13287941) 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, 10435 + ... + 11638.

It is an arithmetic number, because the mean of its divisors is an integer number (1456884).

Almost surely, 2^13287946 is an apocalyptic number.

13287946 is a deficient number, since it is larger than the sum of its proper divisors (10022198).

13287946 is a wasteful number, since it uses less digits than its factorization.

13287946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22125.

The product of its digits is 72576, while the sum is 40.

The square root of 13287946 is about 3645.2635021353. The cubic root of 13287946 is about 236.8568512491.

The spelling of 13287946 in words is "thirteen million, two hundred eighty-seven thousand, nine hundred forty-six".