12958989 has 8 divisors (see below), whose sum is σ = 17385312. Its totient is φ = 8586000.

The previous prime is 12958973. The next prime is 12958997. The reversal of 12958989 is 98985921.

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

It is not a de Polignac number, because 12958989 - 2⁴ = 12958973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958919) 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, 12762 + ... + 13739.

It is an arithmetic number, because the mean of its divisors is an integer number (2173164).

Almost surely, 2^12958989 is an apocalyptic number.

It is an amenable number.

12958989 is a deficient number, since it is larger than the sum of its proper divisors (4426323).

12958989 is a wasteful number, since it uses less digits than its factorization.

12958989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26667.

The product of its digits is 466560, while the sum is 51.

The square root of 12958989 is about 3599.8595805948. The cubic root of 12958989 is about 234.8859503928.

The spelling of 12958989 in words is "twelve million, nine hundred fifty-eight thousand, nine hundred eighty-nine".