809456 has 10 divisors (see below), whose sum is σ = 1568352. Its totient is φ = 404720.

The previous prime is 809453. The next prime is 809461. The reversal of 809456 is 654908.

809456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25280 + ... + 25311.

2⁸⁰⁹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

809456 is a deficient number, since it is larger than the sum of its proper divisors (758896).

809456 is a wasteful number, since it uses less digits than its factorization.

809456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50599 (or 50593 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 809456 is about 899.6977270172. The cubic root of 809456 is about 93.1961021782.

The spelling of 809456 in words is "eight hundred nine thousand, four hundred fifty-six".