816059 has 4 divisors (see below), whose sum is σ = 817920. Its totient is φ = 814200.

The previous prime is 816047. The next prime is 816077. The reversal of 816059 is 950618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 816059 - 2⁴ = 816043 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (816019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (204480).

2⁸¹⁶⁰⁵⁹ is an apocalyptic number.

816059 is a deficient number, since it is larger than the sum of its proper divisors (1861).

816059 is a wasteful number, since it uses less digits than its factorization.

816059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 816059 is about 903.3598397095. The cubic root of 816059 is about 93.4488266974.

The spelling of 816059 in words is "eight hundred sixteen thousand, fifty-nine".