9797828387 has 2 divisors, whose sum is σ = 9797828388. Its totient is φ = 9797828386.

The previous prime is 9797828353. The next prime is 9797828389. The reversal of 9797828387 is 7838287979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9797828387 - 2²⁴ = 9781051171 is a prime.

It is a super-2 number, since 2×9797828387² (a number of 21 digits) contains 22 as substring.

Together with 9797828389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9797828389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4898914193 + 4898914194.

It is an arithmetic number, because the mean of its divisors is an integer number (4898914194).

Almost surely, 2^9797828387 is an apocalyptic number.

9797828387 is a deficient number, since it is larger than the sum of its proper divisors (1).

9797828387 is an equidigital number, since it uses as much as digits as its factorization.

9797828387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85349376, while the sum is 68.

The square root of 9797828387 is about 98983.9804564355. The cubic root of 9797828387 is about 2139.8168815128.

The spelling of 9797828387 in words is "nine billion, seven hundred ninety-seven million, eight hundred twenty-eight thousand, three hundred eighty-seven".