816233 has 4 divisors (see below), whose sum is σ = 890448. Its totient is φ = 742020.

The previous prime is 816227. The next prime is 816239. The reversal of 816233 is 332618.

816233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (816227) and next prime (816239).

It is a cyclic number.

It is not a de Polignac number, because 816233 - 2⁴ = 816217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 816199 and 816208.

It is not an unprimeable number, because it can be changed into a prime (816239) 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, 37091 + ... + 37112.

It is an arithmetic number, because the mean of its divisors is an integer number (222612).

2⁸¹⁶²³³ is an apocalyptic number.

It is an amenable number.

816233 is a deficient number, since it is larger than the sum of its proper divisors (74215).

816233 is a wasteful number, since it uses less digits than its factorization.

816233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74214.

The product of its digits is 864, while the sum is 23.

The square root of 816233 is about 903.4561417136. The cubic root of 816233 is about 93.4554679412.

The spelling of 816233 in words is "eight hundred sixteen thousand, two hundred thirty-three".