815946 has 16 divisors (see below), whose sum is σ = 1641600. Its totient is φ = 270368.

The previous prime is 815939. The next prime is 815953. The reversal of 815946 is 649518.

815946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (815939) and next prime (815953).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150 + ... + 1718.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2⁸¹⁵⁹⁴⁶ is an apocalyptic number.

815946 is an abundant number, since it is smaller than the sum of its proper divisors (825654).

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

815946 is a wasteful number, since it uses less digits than its factorization.

815946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its digits is 8640, while the sum is 33.

The square root of 815946 is about 903.2972932540. The cubic root of 815946 is about 93.4445132001. Note that the first 3 decimals are identical.

The spelling of 815946 in words is "eight hundred fifteen thousand, nine hundred forty-six".