650085 has 16 divisors (see below), whose sum is σ = 1095360. Its totient is φ = 328320.

The previous prime is 650081. The next prime is 650099. The reversal of 650085 is 580056.

It is not a de Polignac number, because 650085 - 2² = 650081 is a prime.

It is a super-2 number, since 2×650085² = 845221014450, which contains 22 as substring.

650085 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650081) 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, 856 + ... + 1425.

It is an arithmetic number, because the mean of its divisors is an integer number (68460).

2⁶⁵⁰⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

650085 is a deficient number, since it is larger than the sum of its proper divisors (445275).

650085 is a wasteful number, since it uses less digits than its factorization.

650085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 650085 is about 806.2784878688. The cubic root of 650085 is about 86.6276862836.

The spelling of 650085 in words is "six hundred fifty thousand, eighty-five".