847239052 has 24 divisors (see below), whose sum is σ = 1669635072. Its totient is φ = 372685200.

The previous prime is 847239049. The next prime is 847239077. The reversal of 847239052 is 250932748.

It is a super-2 number, since 2×847239052² = 1435628022467717408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 847238996 and 847239014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309208 + ... + 311935.

It is an arithmetic number, because the mean of its divisors is an integer number (69568128).

Almost surely, 2^847239052 is an apocalyptic number.

It is an amenable number.

847239052 is a deficient number, since it is larger than the sum of its proper divisors (822396020).

847239052 is a wasteful number, since it uses less digits than its factorization.

847239052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621189 (or 621187 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 847239052 is about 29107.3710939343. The cubic root of 847239052 is about 946.2414939784.

It can be divided in two parts, 8472 and 39052, that added together give a square (47524 = 218²).

The spelling of 847239052 in words is "eight hundred forty-seven million, two hundred thirty-nine thousand, fifty-two".