809412 has 24 divisors (see below), whose sum is σ = 1940736. Its totient is φ = 262368.

The previous prime is 809407. The next prime is 809423. The reversal of 809412 is 214908.

It is a plaindrome in base 13.

It is an unprimeable number.

809412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468 + ... + 1355.

It is an arithmetic number, because the mean of its divisors is an integer number (80864).

2⁸⁰⁹⁴¹² is an apocalyptic number.

It is an amenable number.

809412 is an abundant number, since it is smaller than the sum of its proper divisors (1131324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809412 is a wasteful number, since it uses less digits than its factorization.

809412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 809412 is about 899.6732740279. The cubic root of 809412 is about 93.1944135120.

It can be divided in two parts, 809 and 412, that added together give a palindrome (1221).

The spelling of 809412 in words is "eight hundred nine thousand, four hundred twelve".