900606 has 32 divisors (see below), whose sum is σ = 2112768. Its totient is φ = 250560.

The previous prime is 900593. The next prime is 900607. The reversal of 900606 is 606009.

900606 = 473² + 474² + ... + 476².

It is a super-2 number, since 2×900606² = 1622182334472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

900606 is a modest number, since divided by 606 gives 90 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900607) by changing a digit.

900606 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 15 ways as a sum of consecutive naturals, for example, 1461 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (66024).

2⁹⁰⁰⁶⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 900606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056384).

900606 is an abundant number, since it is smaller than the sum of its proper divisors (1212162).

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

900606 is a wasteful number, since it uses less digits than its factorization.

900606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 900606 is about 949.0026343483. The cubic root of 900606 is about 96.5706034716.

The spelling of 900606 in words is "nine hundred thousand, six hundred six".