900646 has 8 divisors (see below), whose sum is σ = 1355544. Its totient is φ = 448800.

The previous prime is 900623. The next prime is 900649. The reversal of 900646 is 646009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×900646² = 1622326434632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 900646.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241 + ... + 1363.

It is an arithmetic number, because the mean of its divisors is an integer number (169443).

2⁹⁰⁰⁶⁴⁶ is an apocalyptic number.

900646 is a deficient number, since it is larger than the sum of its proper divisors (454898).

900646 is a wasteful number, since it uses less digits than its factorization.

900646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 900646 is about 949.0237088714. The cubic root of 900646 is about 96.5720331633.

The spelling of 900646 in words is "nine hundred thousand, six hundred forty-six".