12631789 has 8 divisors (see below), whose sum is σ = 13329440. Its totient is φ = 11937456.

The previous prime is 12631783. The next prime is 12631831. The reversal of 12631789 is 98713621.

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 12631789 - 2³ = 12631781 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 (12631781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13474 + ... + 14380.

It is an arithmetic number, because the mean of its divisors is an integer number (1666180).

Almost surely, 2^12631789 is an apocalyptic number.

12631789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12631789 is a deficient number, since it is larger than the sum of its proper divisors (697651).

12631789 is an equidigital number, since it uses as much as digits as its factorization.

12631789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659.

The product of its digits is 18144, while the sum is 37.

The square root of 12631789 is about 3554.1228172363. The cubic root of 12631789 is about 232.8922057824.

The spelling of 12631789 in words is "twelve million, six hundred thirty-one thousand, seven hundred eighty-nine".