12588991 has 8 divisors (see below), whose sum is σ = 13047984. Its totient is φ = 12136320.

The previous prime is 12588977. The next prime is 12589033. The reversal of 12588991 is 19988521.

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

It is a cyclic number.

It is not a de Polignac number, because 12588991 - 2⁹ = 12588479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12588911) 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, 2676 + ... + 5686.

It is an arithmetic number, because the mean of its divisors is an integer number (1630998).

Almost surely, 2^12588991 is an apocalyptic number.

12588991 is a deficient number, since it is larger than the sum of its proper divisors (458993).

12588991 is a wasteful number, since it uses less digits than its factorization.

12588991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161.

The product of its digits is 51840, while the sum is 43.

The square root of 12588991 is about 3548.0968137862. The cubic root of 12588991 is about 232.6288860293.

The spelling of 12588991 in words is "twelve million, five hundred eighty-eight thousand, nine hundred ninety-one".