900918 has 12 divisors (see below), whose sum is σ = 1952028. Its totient is φ = 300300.

The previous prime is 900917. The next prime is 900929. The reversal of 900918 is 819009.

It is a junction number, because it is equal to n+sod(n) for n = 900891 and 900900.

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 900918.

It is not an unprimeable number, because it can be changed into a prime (900917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25008 + ... + 25043.

It is an arithmetic number, because the mean of its divisors is an integer number (162669).

2⁹⁰⁰⁹¹⁸ is an apocalyptic number.

900918 is an abundant number, since it is smaller than the sum of its proper divisors (1051110).

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

900918 is a wasteful number, since it uses less digits than its factorization.

900918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50059 (or 50056 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 900918 is about 949.1670032191. The cubic root of 900918 is about 96.5817539449.

The spelling of 900918 in words is "nine hundred thousand, nine hundred eighteen".