845087 has 4 divisors (see below), whose sum is σ = 894816. Its totient is φ = 795360.

The previous prime is 845083. The next prime is 845099. The reversal of 845087 is 780548.

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 845087 - 2² = 845083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 845087.

It is not an unprimeable number, because it can be changed into a prime (845083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24839 + ... + 24872.

It is an arithmetic number, because the mean of its divisors is an integer number (223704).

2⁸⁴⁵⁰⁸⁷ is an apocalyptic number.

845087 is a deficient number, since it is larger than the sum of its proper divisors (49729).

845087 is a wasteful number, since it uses less digits than its factorization.

845087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49728.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 845087 is about 919.2861360860. The cubic root of 845087 is about 94.5439639412.

The spelling of 845087 in words is "eight hundred forty-five thousand, eighty-seven".