816061 has 8 divisors (see below), whose sum is σ = 846720. Its totient is φ = 786048.

The previous prime is 816047. The next prime is 816077. The reversal of 816061 is 160618.

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

It is a cyclic number.

It is not a de Polignac number, because 816061 - 2⁷ = 815933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816091) 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 7 ways as a sum of consecutive naturals, for example, 4470 + ... + 4648.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2⁸¹⁶⁰⁶¹ is an apocalyptic number.

It is an amenable number.

816061 is a deficient number, since it is larger than the sum of its proper divisors (30659).

816061 is a wasteful number, since it uses less digits than its factorization.

816061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 816061 is about 903.3609466874. The cubic root of 816061 is about 93.4489030389.

Adding to 816061 its reverse (160618), we get a palindrome (976679).

The spelling of 816061 in words is "eight hundred sixteen thousand, sixty-one".