816033 has 4 divisors (see below), whose sum is σ = 1088048. Its totient is φ = 544020.

The previous prime is 816019. The next prime is 816037. The reversal of 816033 is 330618.

816033 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 not a de Polignac number, because 816033 - 2¹⁷ = 684961 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816037) 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, 136003 + ... + 136008.

It is an arithmetic number, because the mean of its divisors is an integer number (272012).

2⁸¹⁶⁰³³ is an apocalyptic number.

It is an amenable number.

816033 is a deficient number, since it is larger than the sum of its proper divisors (272015).

816033 is a wasteful number, since it uses less digits than its factorization.

816033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272014.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 816033 is about 903.3454488732. The cubic root of 816033 is about 93.4478342466.

The spelling of 816033 in words is "eight hundred sixteen thousand, thirty-three".