12835989 has 24 divisors (see below), whose sum is σ = 19455072. Its totient is φ = 8456400.

The previous prime is 12835961. The next prime is 12836023. The reversal of 12835989 is 98953821.

It is a happy number.

It is not a de Polignac number, because 12835989 - 2⁹ = 12835477 is a prime.

It is a super-2 number, since 2×12835989² = 329525227216242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12835919) 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 23 ways as a sum of consecutive naturals, for example, 24282 + ... + 24804.

It is an arithmetic number, because the mean of its divisors is an integer number (810628).

Almost surely, 2^12835989 is an apocalyptic number.

It is an amenable number.

12835989 is a deficient number, since it is larger than the sum of its proper divisors (6619083).

12835989 is an equidigital number, since it uses as much as digits as its factorization.

12835989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 627 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 12835989 is about 3582.7348492458. The cubic root of 12835989 is about 234.1404482296.

It can be divided in two parts, 12835 and 989, that added together give a cube (13824 = 24³).

The spelling of 12835989 in words is "twelve million, eight hundred thirty-five thousand, nine hundred eighty-nine".