905994 has 12 divisors (see below), whose sum is σ = 1963026. Its totient is φ = 301992.

The previous prime is 905963. The next prime is 905999. The reversal of 905994 is 499509.

905994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 660969 + 245025 = 813^2 + 495^2 .

It is not an unprimeable number, because it can be changed into a prime (905999) by changing a digit.

905994 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 5 ways as a sum of consecutive naturals, for example, 25149 + ... + 25184.

2⁹⁰⁵⁹⁹⁴ is an apocalyptic number.

905994 is an abundant number, since it is smaller than the sum of its proper divisors (1057032).

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

905994 is a wasteful number, since it uses less digits than its factorization.

905994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50341 (or 50338 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 905994 is about 951.8371709489. The cubic root of 905994 is about 96.7628030250.

It can be divided in two parts, 90 and 5994, that added together give a square (6084 = 78²).

The spelling of 905994 in words is "nine hundred five thousand, nine hundred ninety-four".