9801647 has 2 divisors, whose sum is σ = 9801648. Its totient is φ = 9801646.

The previous prime is 9801641. The next prime is 9801677. The reversal of 9801647 is 7461089.

It is a weak prime.

It is an emirp because it is prime and its reverse (7461089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9801647 - 2¹² = 9797551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9801641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900823 + 4900824.

It is an arithmetic number, because the mean of its divisors is an integer number (4900824).

Almost surely, 2^9801647 is an apocalyptic number.

9801647 is a deficient number, since it is larger than the sum of its proper divisors (1).

9801647 is an equidigital number, since it uses as much as digits as its factorization.

9801647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 9801647 is about 3130.7582148738. The cubic root of 9801647 is about 214.0094836686.

The spelling of 9801647 in words is "nine million, eight hundred one thousand, six hundred forty-seven".