847941972 has 12 divisors (see below), whose sum is σ = 1978531296. Its totient is φ = 282647320.

The previous prime is 847941949. The next prime is 847941979. The reversal of 847941972 is 279149748.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847941979) 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, 35330904 + ... + 35330927.

It is an arithmetic number, because the mean of its divisors is an integer number (164877608).

Almost surely, 2^847941972 is an apocalyptic number.

It is an amenable number.

847941972 is an abundant number, since it is smaller than the sum of its proper divisors (1130589324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

847941972 is a wasteful number, since it uses less digits than its factorization.

847941972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70661838 (or 70661836 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 847941972 is about 29119.4431952261. The cubic root of 847941972 is about 946.5031077499.

The spelling of 847941972 in words is "eight hundred forty-seven million, nine hundred forty-one thousand, nine hundred seventy-two".