9828997 has 2 divisors, whose sum is σ = 9828998. Its totient is φ = 9828996.

The previous prime is 9828979. The next prime is 9829007. The reversal of 9828997 is 7998289.

Together with previous prime (9828979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9771876 + 57121 = 3126^2 + 239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9828997 is a prime.

It is an Ulam number.

9828997 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9828977) 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, 4914498 + 4914499.

It is an arithmetic number, because the mean of its divisors is an integer number (4914499).

Almost surely, 2^9828997 is an apocalyptic number.

It is an amenable number.

9828997 is a deficient number, since it is larger than the sum of its proper divisors (1).

9828997 is an equidigital number, since it uses as much as digits as its factorization.

9828997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 52.

The square root of 9828997 is about 3135.1231235790. The cubic root of 9828997 is about 214.2083524126.

The spelling of 9828997 in words is "nine million, eight hundred twenty-eight thousand, nine hundred ninety-seven".