9897983 has 2 divisors, whose sum is σ = 9897984. Its totient is φ = 9897982.

The previous prime is 9897973. The next prime is 9898001. The reversal of 9897983 is 3897989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9897983 - 2⁶ = 9897919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9897913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4948991 + 4948992.

It is an arithmetic number, because the mean of its divisors is an integer number (4948992).

Almost surely, 2^9897983 is an apocalyptic number.

9897983 is a deficient number, since it is larger than the sum of its proper divisors (1).

9897983 is an equidigital number, since it uses as much as digits as its factorization.

9897983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 53.

The square root of 9897983 is about 3146.1060058428. The cubic root of 9897983 is about 214.7083335504.

The spelling of 9897983 in words is "nine million, eight hundred ninety-seven thousand, nine hundred eighty-three".