12023859 has 4 divisors (see below), whose sum is σ = 16031816. Its totient is φ = 8015904.

The previous prime is 12023857. The next prime is 12023861. The reversal of 12023859 is 95832021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12023857) and next prime (12023861).

It is not a de Polignac number, because 12023859 - 2¹ = 12023857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12023857) 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, 2003974 + ... + 2003979.

It is an arithmetic number, because the mean of its divisors is an integer number (4007954).

Almost surely, 2^12023859 is an apocalyptic number.

12023859 is a deficient number, since it is larger than the sum of its proper divisors (4007957).

12023859 is an equidigital number, since it uses as much as digits as its factorization.

12023859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007956.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12023859 is about 3467.5436550965. The cubic root of 12023859 is about 229.0944799341.

The spelling of 12023859 in words is "twelve million, twenty-three thousand, eight hundred fifty-nine".