845995 has 4 divisors (see below), whose sum is σ = 1015200. Its totient is φ = 676792.

The previous prime is 845989. The next prime is 846037. The reversal of 845995 is 599548.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 845995 - 2³ = 845987 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 84595 + ... + 84604.

It is an arithmetic number, because the mean of its divisors is an integer number (253800).

2⁸⁴⁵⁹⁹⁵ is an apocalyptic number.

845995 is a deficient number, since it is larger than the sum of its proper divisors (169205).

845995 is a wasteful number, since it uses less digits than its factorization.

845995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169204.

The product of its digits is 64800, while the sum is 40.

The square root of 845995 is about 919.7798649677. The cubic root of 845995 is about 94.5778126030.

The spelling of 845995 in words is "eight hundred forty-five thousand, nine hundred ninety-five".