12389475 has 24 divisors (see below), whose sum is σ = 23411200. Its totient is φ = 5663520.

The previous prime is 12389473. The next prime is 12389483. The reversal of 12389475 is 57498321.

12389475 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12389475 - 2¹ = 12389473 is a prime.

12389475 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (12389473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11275 + ... + 12324.

Almost surely, 2^12389475 is an apocalyptic number.

12389475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12389475 is a deficient number, since it is larger than the sum of its proper divisors (11021725).

12389475 is a wasteful number, since it uses less digits than its factorization.

12389475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23619 (or 23614 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 12389475 is about 3519.8686055022. The cubic root of 12389475 is about 231.3934002227.

It can be divided in two parts, 123 and 89475, that added together give a palindrome (89598).

The spelling of 12389475 in words is "twelve million, three hundred eighty-nine thousand, four hundred seventy-five".