650013 has 16 divisors (see below), whose sum is σ = 1067136. Its totient is φ = 342720.

The previous prime is 650011. The next prime is 650017. The reversal of 650013 is 310056.

It is not a de Polignac number, because 650013 - 2¹ = 650011 is a prime.

It is a Curzon number.

650013 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 649974 and 650001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918 + ... + 1463.

It is an arithmetic number, because the mean of its divisors is an integer number (66696).

2⁶⁵⁰⁰¹³ is an apocalyptic number.

It is an amenable number.

650013 is a deficient number, since it is larger than the sum of its proper divisors (417123).

650013 is a wasteful number, since it uses less digits than its factorization.

650013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 650013 is about 806.2338370473. The cubic root of 650013 is about 86.6244880230.

Adding to 650013 its reverse (310056), we get a palindrome (960069).

The spelling of 650013 in words is "six hundred fifty thousand, thirteen".