9872827 has 2 divisors, whose sum is σ = 9872828. Its totient is φ = 9872826.

The previous prime is 9872809. The next prime is 9872839. The reversal of 9872827 is 7282789.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9872827 is a prime.

It is not a weakly prime, because it can be changed into another prime (9872887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936413 + 4936414.

It is an arithmetic number, because the mean of its divisors is an integer number (4936414).

Almost surely, 2^9872827 is an apocalyptic number.

9872827 is a deficient number, since it is larger than the sum of its proper divisors (1).

9872827 is an equidigital number, since it uses as much as digits as its factorization.

9872827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 43.

The square root of 9872827 is about 3142.1055042758. The cubic root of 9872827 is about 214.5262834944.

The spelling of 9872827 in words is "nine million, eight hundred seventy-two thousand, eight hundred twenty-seven".