12890859 has 8 divisors (see below), whose sum is σ = 17218560. Its totient is φ = 8578536.

The previous prime is 12890821. The next prime is 12890861. The reversal of 12890859 is 95809821.

It is a happy number.

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

It is not a de Polignac number, because 12890859 - 2¹⁵ = 12858091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12890859.

It is not an unprimeable number, because it can be changed into a prime (12890809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (2152320).

Almost surely, 2^12890859 is an apocalyptic number.

12890859 is a deficient number, since it is larger than the sum of its proper divisors (4327701).

12890859 is an equidigital number, since it uses as much as digits as its factorization.

12890859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7689.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 12890859 is about 3590.3842412756. The cubic root of 12890859 is about 234.4736006821.

The spelling of 12890859 in words is "twelve million, eight hundred ninety thousand, eight hundred fifty-nine".