810406 has 8 divisors (see below), whose sum is σ = 1245384. Its totient is φ = 395280.

The previous prime is 810401. The next prime is 810409. The reversal of 810406 is 604018.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4860 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (155673).

2⁸¹⁰⁴⁰⁶ is an apocalyptic number.

810406 is a deficient number, since it is larger than the sum of its proper divisors (434978).

810406 is a wasteful number, since it uses less digits than its factorization.

810406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9926.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 810406 is about 900.2255272986. The cubic root of 810406 is about 93.2325471006.

The spelling of 810406 in words is "eight hundred ten thousand, four hundred six".