9870647 has 2 divisors, whose sum is σ = 9870648. Its totient is φ = 9870646.

The previous prime is 9870589. The next prime is 9870661. The reversal of 9870647 is 7460789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9870647 - 2⁶ = 9870583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9870677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4935323 + 4935324.

It is an arithmetic number, because the mean of its divisors is an integer number (4935324).

Almost surely, 2^9870647 is an apocalyptic number.

9870647 is a deficient number, since it is larger than the sum of its proper divisors (1).

9870647 is an equidigital number, since it uses as much as digits as its factorization.

9870647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 9870647 is about 3141.7585839781. The cubic root of 9870647 is about 214.5104926196.

The spelling of 9870647 in words is "nine million, eight hundred seventy thousand, six hundred forty-seven".