9828006491 has 2 divisors, whose sum is σ = 9828006492. Its totient is φ = 9828006490.

The previous prime is 9828006457. The next prime is 9828006523. The reversal of 9828006491 is 1946008289.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9828006491 - 2¹⁸ = 9827744347 is a prime.

It is not a weakly prime, because it can be changed into another prime (9828026491) by changing a digit.

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 as a sum of consecutive naturals, namely, 4914003245 + 4914003246.

It is an arithmetic number, because the mean of its divisors is an integer number (4914003246).

Almost surely, 2^9828006491 is an apocalyptic number.

9828006491 is a deficient number, since it is larger than the sum of its proper divisors (1).

9828006491 is an equidigital number, since it uses as much as digits as its factorization.

9828006491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 9828006491 is about 99136.3025889104. The cubic root of 9828006491 is about 2142.0115661472.

The spelling of 9828006491 in words is "nine billion, eight hundred twenty-eight million, six thousand, four hundred ninety-one".