816412 has 12 divisors (see below), whose sum is σ = 1456056. Its totient is φ = 400400.

The previous prime is 816401. The next prime is 816427. The reversal of 816412 is 214618.

816412 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 an unprimeable number.

816412 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 3 ways as a sum of consecutive naturals, for example, 1714 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (121338).

2⁸¹⁶⁴¹² is an apocalyptic number.

It is an amenable number.

816412 is a deficient number, since it is larger than the sum of its proper divisors (639644).

816412 is a wasteful number, since it uses less digits than its factorization.

816412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908 (or 3906 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 816412 is about 903.5552003060. Note that the first 3 decimals coincide. The cubic root of 816412 is about 93.4622990405.

The spelling of 816412 in words is "eight hundred sixteen thousand, four hundred twelve".