12455789 has 4 divisors (see below), whose sum is σ = 12481056. Its totient is φ = 12430524.

The previous prime is 12455783. The next prime is 12455797. The reversal of 12455789 is 98755421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12455789 - 2⁸ = 12455533 is a prime.

It is a super-2 number, since 2×12455789² = 310293359225042, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12455783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11879 + ... + 12884.

It is an arithmetic number, because the mean of its divisors is an integer number (3120264).

Almost surely, 2^12455789 is an apocalyptic number.

It is an amenable number.

12455789 is a deficient number, since it is larger than the sum of its proper divisors (25267).

12455789 is an equidigital number, since it uses as much as digits as its factorization.

12455789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25266.

The product of its digits is 100800, while the sum is 41.

The square root of 12455789 is about 3529.2759880746. The cubic root of 12455789 is about 231.8055060887.

The spelling of 12455789 in words is "twelve million, four hundred fifty-five thousand, seven hundred eighty-nine".