12428823 has 8 divisors (see below), whose sum is σ = 18078336. Its totient is φ = 7532600.

The previous prime is 12428813. The next prime is 12428827. The reversal of 12428823 is 32882421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12428823 - 2²² = 8234519 is a prime.

It is a super-3 number, since 3×12428823³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12428827) 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, 188283 + ... + 188348.

It is an arithmetic number, because the mean of its divisors is an integer number (2259792).

Almost surely, 2^12428823 is an apocalyptic number.

12428823 is a deficient number, since it is larger than the sum of its proper divisors (5649513).

12428823 is a wasteful number, since it uses less digits than its factorization.

12428823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376645.

The product of its digits is 6144, while the sum is 30.

The square root of 12428823 is about 3525.4535878380. The cubic root of 12428823 is about 231.6381037769.

The spelling of 12428823 in words is "twelve million, four hundred twenty-eight thousand, eight hundred twenty-three".