845499 has 4 divisors (see below), whose sum is σ = 1127336. Its totient is φ = 563664.

The previous prime is 845491. The next prime is 845531. The reversal of 845499 is 994548.

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

It is not a de Polignac number, because 845499 - 2³ = 845491 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140914 + ... + 140919.

It is an arithmetic number, because the mean of its divisors is an integer number (281834).

2⁸⁴⁵⁴⁹⁹ is an apocalyptic number.

845499 is a deficient number, since it is larger than the sum of its proper divisors (281837).

845499 is a wasteful number, since it uses less digits than its factorization.

845499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281836.

The product of its digits is 51840, while the sum is 39.

The square root of 845499 is about 919.5101957020. The cubic root of 845499 is about 94.5593255883.

The spelling of 845499 in words is "eight hundred forty-five thousand, four hundred ninety-nine".