12090862 has 8 divisors (see below), whose sum is σ = 20727216. Its totient is φ = 5181792.

The previous prime is 12090857. The next prime is 12090863. The reversal of 12090862 is 26809021.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12090862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090863) 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, 431803 + ... + 431830.

It is an arithmetic number, because the mean of its divisors is an integer number (2590902).

Almost surely, 2^12090862 is an apocalyptic number.

12090862 is a deficient number, since it is larger than the sum of its proper divisors (8636354).

12090862 is an equidigital number, since it uses as much as digits as its factorization.

12090862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863642.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 12090862 is about 3477.1916829534. The cubic root of 12090862 is about 229.5192352119.

Adding to 12090862 its reverse (26809021), we get a palindrome (38899883).

The spelling of 12090862 in words is "twelve million, ninety thousand, eight hundred sixty-two".