646233 has 8 divisors (see below), whose sum is σ = 984768. Its totient is φ = 369264.

The previous prime is 646199. The next prime is 646237. The reversal of 646233 is 332646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 646233 - 2⁶ = 646169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (646237) 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, 15366 + ... + 15407.

It is an arithmetic number, because the mean of its divisors is an integer number (123096).

2⁶⁴⁶²³³ is an apocalyptic number.

It is an amenable number.

646233 is a deficient number, since it is larger than the sum of its proper divisors (338535).

646233 is a wasteful number, since it uses less digits than its factorization.

646233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30783.

The product of its digits is 2592, while the sum is 24.

The square root of 646233 is about 803.8861859741. The cubic root of 646233 is about 86.4562465973.

Adding to 646233 its reverse (332646), we get a palindrome (978879).

The spelling of 646233 in words is "six hundred forty-six thousand, two hundred thirty-three".