845982971 has 8 divisors (see below), whose sum is σ = 867510000. Its totient is φ = 824498560.

The previous prime is 845982947. The next prime is 845983009. The reversal of 845982971 is 179289548.

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 845982971 - 2¹⁰ = 845981947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845982671) 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, 31655 + ... + 51903.

It is an arithmetic number, because the mean of its divisors is an integer number (108438750).

Almost surely, 2^845982971 is an apocalyptic number.

845982971 is a deficient number, since it is larger than the sum of its proper divisors (21527029).

845982971 is a wasteful number, since it uses less digits than its factorization.

845982971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21309.

The product of its digits is 1451520, while the sum is 53.

The square root of 845982971 is about 29085.7864084848. The cubic root of 845982971 is about 945.7736434109.

The spelling of 845982971 in words is "eight hundred forty-five million, nine hundred eighty-two thousand, nine hundred seventy-one".