12355389 has 8 divisors (see below), whose sum is σ = 18304320. Its totient is φ = 8236908.

The previous prime is 12355381. The next prime is 12355411. The reversal of 12355389 is 98355321.

12355389 is a `hidden beast` number, since 1 + 23 + 553 + 89 = 666.

It is not a de Polignac number, because 12355389 - 2³ = 12355381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355381) 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, 228777 + ... + 228830.

It is an arithmetic number, because the mean of its divisors is an integer number (2288040).

Almost surely, 2^12355389 is an apocalyptic number.

It is an amenable number.

12355389 is a deficient number, since it is larger than the sum of its proper divisors (5948931).

12355389 is an equidigital number, since it uses as much as digits as its factorization.

12355389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457616 (or 457610 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 12355389 is about 3515.0233285143. The cubic root of 12355389 is about 231.1810016696.

The spelling of 12355389 in words is "twelve million, three hundred fifty-five thousand, three hundred eighty-nine".