9872347 has 2 divisors, whose sum is σ = 9872348. Its totient is φ = 9872346.

The previous prime is 9872341. The next prime is 9872371. The reversal of 9872347 is 7432789.

9872347 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9872347 - 2³ = 9872339 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a pancake number, because a pancake can be divided into 9872347 parts by 4443 straight cuts.

It is not a weakly prime, because it can be changed into another prime (9872341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936173 + 4936174.

It is an arithmetic number, because the mean of its divisors is an integer number (4936174).

Almost surely, 2^9872347 is an apocalyptic number.

9872347 is a deficient number, since it is larger than the sum of its proper divisors (1).

9872347 is an equidigital number, since it uses as much as digits as its factorization.

9872347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The square root of 9872347 is about 3142.0291214437. The cubic root of 9872347 is about 214.5228068041.

It can be divided in two parts, 9 and 872347, that added together give a square (872356 = 934²).

The spelling of 9872347 in words is "nine million, eight hundred seventy-two thousand, three hundred forty-seven".