900648 has 48 divisors (see below), whose sum is σ = 2789280. Its totient is φ = 257184.

The previous prime is 900623. The next prime is 900649. The reversal of 900648 is 846009.

It is a super-2 number, since 2×900648² = 1622333639808, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 900648.

It is not an unprimeable number, because it can be changed into a prime (900649) by changing a digit.

900648 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 in 11 ways as a sum of consecutive naturals, for example, 390 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (58110).

2⁹⁰⁰⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

900648 is an abundant number, since it is smaller than the sum of its proper divisors (1888632).

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

900648 is a wasteful number, since it uses less digits than its factorization.

900648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806 (or 1799 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 900648 is about 949.0247625853. The cubic root of 900648 is about 96.5721046468.

The spelling of 900648 in words is "nine hundred thousand, six hundred forty-eight".