816306 has 32 divisors (see below), whose sum is σ = 1772928. Its totient is φ = 249600.

The previous prime is 816271. The next prime is 816317. The reversal of 816306 is 603618.

816306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

816306 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5331 + ... + 5481.

It is an arithmetic number, because the mean of its divisors is an integer number (55404).

2⁸¹⁶³⁰⁶ is an apocalyptic number.

816306 is an abundant number, since it is smaller than the sum of its proper divisors (956622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816306 is a wasteful number, since it uses less digits than its factorization.

816306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 816306 is about 903.4965412219. The cubic root of 816306 is about 93.4582539291.

The spelling of 816306 in words is "eight hundred sixteen thousand, three hundred six".