800955 has 32 divisors (see below), whose sum is σ = 1512000. Its totient is φ = 400896.

The previous prime is 800953. The next prime is 800959. The reversal of 800955 is 559008.

It is not a de Polignac number, because 800955 - 2¹ = 800953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800953) 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 31 ways as a sum of consecutive naturals, for example, 2121 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2⁸⁰⁰⁹⁵⁵ is an apocalyptic number.

800955 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

800955 is a deficient number, since it is larger than the sum of its proper divisors (711045).

800955 is a wasteful number, since it uses less digits than its factorization.

800955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 800955 is about 894.9608930004. The cubic root of 800955 is about 92.8687012944.

The spelling of 800955 in words is "eight hundred thousand, nine hundred fifty-five".