845672271 has 16 divisors (see below), whose sum is σ = 1156167936. Its totient is φ = 549533376.

The previous prime is 845672263. The next prime is 845672339. The reversal of 845672271 is 172276548.

It is not a de Polignac number, because 845672271 - 2³ = 845672263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845672251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58371 + ... + 71403.

It is an arithmetic number, because the mean of its divisors is an integer number (72260496).

Almost surely, 2^845672271 is an apocalyptic number.

845672271 is a deficient number, since it is larger than the sum of its proper divisors (310495665).

845672271 is a wasteful number, since it uses less digits than its factorization.

845672271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13582.

The product of its digits is 188160, while the sum is 42.

The square root of 845672271 is about 29080.4448212196. Note that the first 3 decimals coincide. The cubic root of 845672271 is about 945.6578460240.

The spelling of 845672271 in words is "eight hundred forty-five million, six hundred seventy-two thousand, two hundred seventy-one".