805345 has 16 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 599104.

The previous prime is 805339. The next prime is 805369. The reversal of 805345 is 543508.

It is a happy number.

It is not a de Polignac number, because 805345 - 2⁵ = 805313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5331 + ... + 5479.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁸⁰⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

805345 is a deficient number, since it is larger than the sum of its proper divisors (231455).

805345 is a wasteful number, since it uses less digits than its factorization.

805345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 805345 is about 897.4101626347. The cubic root of 805345 is about 93.0380620400.

The spelling of 805345 in words is "eight hundred five thousand, three hundred forty-five".