9897001 has 2 divisors, whose sum is σ = 9897002. Its totient is φ = 9897000.

The previous prime is 9896989. The next prime is 9897011. The reversal of 9897001 is 1007989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8271376 + 1625625 = 2876^2 + 1275^2 .

It is a cyclic number.

It is not a de Polignac number, because 9897001 - 2⁹ = 9896489 is a prime.

It is not a weakly prime, because it can be changed into another prime (9897011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4948500 + 4948501.

It is an arithmetic number, because the mean of its divisors is an integer number (4948501).

Almost surely, 2^9897001 is an apocalyptic number.

It is an amenable number.

9897001 is a deficient number, since it is larger than the sum of its proper divisors (1).

9897001 is an equidigital number, since it uses as much as digits as its factorization.

9897001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 9897001 is about 3145.9499360289. The cubic root of 9897001 is about 214.7012327584.

The spelling of 9897001 in words is "nine million, eight hundred ninety-seven thousand, one".