650889 has 8 divisors (see below), whose sum is σ = 964320. Its totient is φ = 433908.

The previous prime is 650873. The next prime is 650911. The reversal of 650889 is 988056.

It is not a de Polignac number, because 650889 - 2⁴ = 650873 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (650869) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12027 + ... + 12080.

It is an arithmetic number, because the mean of its divisors is an integer number (120540).

2⁶⁵⁰⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

650889 is a deficient number, since it is larger than the sum of its proper divisors (313431).

650889 is a wasteful number, since it uses less digits than its factorization.

650889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24116 (or 24110 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 650889 is about 806.7769208400. The cubic root of 650889 is about 86.6633841623.

The spelling of 650889 in words is "six hundred fifty thousand, eight hundred eighty-nine".