900868 has 6 divisors (see below), whose sum is σ = 1576526. Its totient is φ = 450432.

The previous prime is 900863. The next prime is 900869. The reversal of 900868 is 868009.

It can be written as a sum of positive squares in only one way, i.e., 652864 + 248004 = 808^2 + 498^2 .

It is a super-3 number, since 3×900868³ = 2193333824696316096, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (900863) by changing a digit.

900868 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112605 + ... + 112612.

2⁹⁰⁰⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

900868 is a deficient number, since it is larger than the sum of its proper divisors (675658).

900868 is a wasteful number, since it uses less digits than its factorization.

900868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225221 (or 225219 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 900868 is about 949.1406639693. The cubic root of 900868 is about 96.5799671833.

The spelling of 900868 in words is "nine hundred thousand, eight hundred sixty-eight".