12732889 has 8 divisors (see below), whose sum is σ = 13740552. Its totient is φ = 11729280.

The previous prime is 12732883. The next prime is 12732959. The reversal of 12732889 is 98823721.

It can be written as a sum of positive squares in 4 ways, for example, as 94864 + 12638025 = 308^2 + 3555^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12732889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12732883) 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 7 ways as a sum of consecutive naturals, for example, 10077 + ... + 11269.

It is an arithmetic number, because the mean of its divisors is an integer number (1717569).

Almost surely, 2^12732889 is an apocalyptic number.

It is an amenable number.

12732889 is a deficient number, since it is larger than the sum of its proper divisors (1007663).

12732889 is a wasteful number, since it uses less digits than its factorization.

12732889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its digits is 48384, while the sum is 40.

The square root of 12732889 is about 3568.3173905918. The cubic root of 12732889 is about 233.5118821588.

The spelling of 12732889 in words is "twelve million, seven hundred thirty-two thousand, eight hundred eighty-nine".