906550 has 12 divisors (see below), whose sum is σ = 1686276. Its totient is φ = 362600.

The previous prime is 906541. The next prime is 906557. The reversal of 906550 is 55609.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906557) by changing a digit.

906550 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 5 ways as a sum of consecutive naturals, for example, 9016 + ... + 9115.

It is an arithmetic number, because the mean of its divisors is an integer number (140523).

2⁹⁰⁶⁵⁵⁰ is an apocalyptic number.

906550 is a deficient number, since it is larger than the sum of its proper divisors (779726).

906550 is a wasteful number, since it uses less digits than its factorization.

906550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18143 (or 18138 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 906550 is about 952.1291929145. The cubic root of 906550 is about 96.7825931180.

The spelling of 906550 in words is "nine hundred six thousand, five hundred fifty".