905982 has 64 divisors (see below), whose sum is σ = 2363904. Its totient is φ = 224640.

The previous prime is 905963. The next prime is 905999. The reversal of 905982 is 289509.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17068 + ... + 17120.

It is an arithmetic number, because the mean of its divisors is an integer number (36936).

2⁹⁰⁵⁹⁸² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 905982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181952).

905982 is an abundant number, since it is smaller than the sum of its proper divisors (1457922).

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

905982 is a wasteful number, since it uses less digits than its factorization.

905982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 905982 is about 951.8308673289. The cubic root of 905982 is about 96.7623758114.

The spelling of 905982 in words is "nine hundred five thousand, nine hundred eighty-two".