847120964 has 6 divisors (see below), whose sum is σ = 1482461694. Its totient is φ = 423560480.

The previous prime is 847120961. The next prime is 847120979. The reversal of 847120964 is 469021748.

It can be written as a sum of positive squares in only one way, i.e., 510398464 + 336722500 = 22592^2 + 18350^2 .

It is a super-2 number, since 2×847120964² = 1435227855296578592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (847120961) by changing a digit.

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 as a sum of consecutive naturals, namely, 105890117 + ... + 105890124.

It is an arithmetic number, because the mean of its divisors is an integer number (247076949).

Almost surely, 2^847120964 is an apocalyptic number.

It is an amenable number.

847120964 is a deficient number, since it is larger than the sum of its proper divisors (635340730).

847120964 is a wasteful number, since it uses less digits than its factorization.

847120964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211780245 (or 211780243 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 847120964 is about 29105.3425336312. The cubic root of 847120964 is about 946.1975296226.

The spelling of 847120964 in words is "eight hundred forty-seven million, one hundred twenty thousand, nine hundred sixty-four".