800945 has 8 divisors (see below), whose sum is σ = 1011840. Its totient is φ = 606960.

The previous prime is 800923. The next prime is 800953. The reversal of 800945 is 549008.

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

It is not a de Polignac number, because 800945 - 2¹⁰ = 799921 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4121 + ... + 4310.

It is an arithmetic number, because the mean of its divisors is an integer number (126480).

2⁸⁰⁰⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

800945 is a deficient number, since it is larger than the sum of its proper divisors (210895).

800945 is a wasteful number, since it uses less digits than its factorization.

800945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 800945 is about 894.9553061466. The cubic root of 800945 is about 92.8683148012.

The spelling of 800945 in words is "eight hundred thousand, nine hundred forty-five".