9970243 has 2 divisors, whose sum is σ = 9970244. Its totient is φ = 9970242.

The previous prime is 9970241. The next prime is 9970249. The reversal of 9970243 is 3420799.

It is a weak prime.

It is an emirp because it is prime and its reverse (3420799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9970243 - 2¹ = 9970241 is a prime.

Together with 9970241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 9970199 and 9970208.

It is not a weakly prime, because it can be changed into another prime (9970241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4985121 + 4985122.

It is an arithmetic number, because the mean of its divisors is an integer number (4985122).

Almost surely, 2^9970243 is an apocalyptic number.

9970243 is a deficient number, since it is larger than the sum of its proper divisors (1).

9970243 is an equidigital number, since it uses as much as digits as its factorization.

9970243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 9970243 is about 3157.5691599710. The cubic root of 9970243 is about 215.2295583077.

The spelling of 9970243 in words is "nine million, nine hundred seventy thousand, two hundred forty-three".