845455 has 8 divisors (see below), whose sum is σ = 1092672. Its totient is φ = 624288.

The previous prime is 845447. The next prime is 845459. The reversal of 845455 is 554548.

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

It is a cyclic number.

It is not a de Polignac number, because 845455 - 2³ = 845447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6439 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (136584).

2⁸⁴⁵⁴⁵⁵ is an apocalyptic number.

845455 is a deficient number, since it is larger than the sum of its proper divisors (247217).

845455 is a wasteful number, since it uses less digits than its factorization.

845455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13025.

The product of its digits is 16000, while the sum is 31.

The square root of 845455 is about 919.4862696093. The cubic root of 845455 is about 94.5576852621.

The spelling of 845455 in words is "eight hundred forty-five thousand, four hundred fifty-five".