816206 has 8 divisors (see below), whose sum is σ = 1245240. Its totient is φ = 401128.

The previous prime is 816203. The next prime is 816209. The reversal of 816206 is 602618.

816206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (816203) and next prime (816209).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816203) 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, 3341 + ... + 3576.

It is an arithmetic number, because the mean of its divisors is an integer number (155655).

2⁸¹⁶²⁰⁶ is an apocalyptic number.

816206 is a deficient number, since it is larger than the sum of its proper divisors (429034).

816206 is a wasteful number, since it uses less digits than its factorization.

816206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 816206 is about 903.4411989720. The cubic root of 816206 is about 93.4544374653.

The spelling of 816206 in words is "eight hundred sixteen thousand, two hundred six".