650023 has 4 divisors (see below), whose sum is σ = 709128. Its totient is φ = 590920.

The previous prime is 650017. The next prime is 650059. The reversal of 650023 is 320056.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 650023 - 2⁵ = 649991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 649979 and 650006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650623) 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, 29536 + ... + 29557.

It is an arithmetic number, because the mean of its divisors is an integer number (177282).

2⁶⁵⁰⁰²³ is an apocalyptic number.

650023 is a deficient number, since it is larger than the sum of its proper divisors (59105).

650023 is a wasteful number, since it uses less digits than its factorization.

650023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59104.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 650023 is about 806.2400386982. The cubic root of 650023 is about 86.6249322400.

Adding to 650023 its reverse (320056), we get a palindrome (970079).

The spelling of 650023 in words is "six hundred fifty thousand, twenty-three".