847499972 has 18 divisors (see below), whose sum is σ = 1630212654. Its totient is φ = 385227040.

The previous prime is 847499941. The next prime is 847499981. The reversal of 847499972 is 279994748.

It can be written as a sum of positive squares in only one way, i.e., 729864256 + 117635716 = 27016^2 + 10846^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 875033 + ... + 876000.

Almost surely, 2^847499972 is an apocalyptic number.

It is an amenable number.

847499972 is a deficient number, since it is larger than the sum of its proper divisors (782712682).

847499972 is a wasteful number, since it uses less digits than its factorization.

847499972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751059 (or 1751046 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 59.

The square root of 847499972 is about 29111.8527751155. The cubic root of 847499972 is about 946.3386204386.

The spelling of 847499972 in words is "eight hundred forty-seven million, four hundred ninety-nine thousand, nine hundred seventy-two".