12932889 has 4 divisors (see below), whose sum is σ = 17243856. Its totient is φ = 8621924.

The previous prime is 12932879. The next prime is 12932891. The reversal of 12932889 is 98823921.

12932889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12932889 - 2⁴ = 12932873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12932889.

It is not an unprimeable number, because it can be changed into a prime (12932819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2155479 + ... + 2155484.

It is an arithmetic number, because the mean of its divisors is an integer number (4310964).

Almost surely, 2^12932889 is an apocalyptic number.

It is an amenable number.

12932889 is a deficient number, since it is larger than the sum of its proper divisors (4310967).

12932889 is an equidigital number, since it uses as much as digits as its factorization.

12932889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310966.

The product of its digits is 62208, while the sum is 42.

The square root of 12932889 is about 3596.2326120539. The cubic root of 12932889 is about 234.7281540391.

The spelling of 12932889 in words is "twelve million, nine hundred thirty-two thousand, eight hundred eighty-nine".