9797249087 has 2 divisors, whose sum is σ = 9797249088. Its totient is φ = 9797249086.

The previous prime is 9797249041. The next prime is 9797249089. The reversal of 9797249087 is 7809427979.

It is a strong prime.

It is an emirp because it is prime and its reverse (7809427979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9797249087 - 2⁶ = 9797249023 is a prime.

Together with 9797249089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9797249089) 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, 4898624543 + 4898624544.

It is an arithmetic number, because the mean of its divisors is an integer number (4898624544).

Almost surely, 2^9797249087 is an apocalyptic number.

9797249087 is a deficient number, since it is larger than the sum of its proper divisors (1).

9797249087 is an equidigital number, since it uses as much as digits as its factorization.

9797249087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 62.

The square root of 9797249087 is about 98981.0541821009. The cubic root of 9797249087 is about 2139.7747082100.

The spelling of 9797249087 in words is "nine billion, seven hundred ninety-seven million, two hundred forty-nine thousand, eighty-seven".