12407889 has 16 divisors (see below), whose sum is σ = 18071424. Its totient is φ = 7526400.

The previous prime is 12407887. The next prime is 12407891. The reversal of 12407889 is 98870421.

12407889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12407887) and next prime (12407891).

It is not a de Polignac number, because 12407889 - 2¹ = 12407887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12407887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529 + ... + 5009.

It is an arithmetic number, because the mean of its divisors is an integer number (1129464).

Almost surely, 2^12407889 is an apocalyptic number.

It is an amenable number.

12407889 is a deficient number, since it is larger than the sum of its proper divisors (5663535).

12407889 is a wasteful number, since it uses less digits than its factorization.

12407889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 12407889 is about 3522.4833569515. The cubic root of 12407889 is about 231.5079805119.

The spelling of 12407889 in words is "twelve million, four hundred seven thousand, eight hundred eighty-nine".