12469789 has 4 divisors (see below), whose sum is σ = 13203324. Its totient is φ = 11736256.

The previous prime is 12469771. The next prime is 12469799. The reversal of 12469789 is 98796421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5098564 + 7371225 = 2258^2 + 2715^2 .

It is not a de Polignac number, because 12469789 - 2⁹ = 12469277 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 (12469729) 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 3 ways as a sum of consecutive naturals, for example, 366742 + ... + 366775.

It is an arithmetic number, because the mean of its divisors is an integer number (3300831).

Almost surely, 2^12469789 is an apocalyptic number.

It is an amenable number.

12469789 is a deficient number, since it is larger than the sum of its proper divisors (733535).

12469789 is an equidigital number, since it uses as much as digits as its factorization.

12469789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733534.

The product of its digits is 217728, while the sum is 46.

The square root of 12469789 is about 3531.2588406969. The cubic root of 12469789 is about 231.8923214635.

The spelling of 12469789 in words is "twelve million, four hundred sixty-nine thousand, seven hundred eighty-nine".