900836 has 12 divisors (see below), whose sum is σ = 1591212. Its totient is φ = 446208.

The previous prime is 900821. The next prime is 900863. The reversal of 900836 is 638009.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 270400 + 630436 = 520^2 + 794^2 .

It is an unprimeable number.

900836 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (132601).

2⁹⁰⁰⁸³⁶ is an apocalyptic number.

It is an amenable number.

900836 is a deficient number, since it is larger than the sum of its proper divisors (690376).

900836 is a wasteful number, since it uses less digits than its factorization.

900836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 900836 is about 949.1238064657. The cubic root of 900836 is about 96.5788236212.

The spelling of 900836 in words is "nine hundred thousand, eight hundred thirty-six".