800061 has 4 divisors (see below), whose sum is σ = 1066752. Its totient is φ = 533372.

The previous prime is 800057. The next prime is 800077. The reversal of 800061 is 160008.

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 a cyclic number.

It is not a de Polignac number, because 800061 - 2² = 800057 is a prime.

It is a D-number.

800061 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 800061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133341 + ... + 133346.

It is an arithmetic number, because the mean of its divisors is an integer number (266688).

2⁸⁰⁰⁰⁶¹ is an apocalyptic number.

It is an amenable number.

800061 is a deficient number, since it is larger than the sum of its proper divisors (266691).

800061 is a wasteful number, since it uses less digits than its factorization.

800061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266690.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 800061 is about 894.4612903866. The cubic root of 800061 is about 92.8341360866.

Adding to 800061 its reverse (160008), we get a palindrome (960069).

The spelling of 800061 in words is "eight hundred thousand, sixty-one".