8972259797 has 2 divisors, whose sum is σ = 8972259798. Its totient is φ = 8972259796.

The previous prime is 8972259761. The next prime is 8972259799. The reversal of 8972259797 is 7979522798.

It is a happy number.

8972259797 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7264834756 + 1707425041 = 85234^2 + 41321^2 .

It is a cyclic number.

It is not a de Polignac number, because 8972259797 - 2¹⁰ = 8972258773 is a prime.

Together with 8972259799, 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 (8972259799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4486129898 + 4486129899.

It is an arithmetic number, because the mean of its divisors is an integer number (4486129899).

Almost surely, 2^8972259797 is an apocalyptic number.

It is an amenable number.

8972259797 is a deficient number, since it is larger than the sum of its proper divisors (1).

8972259797 is an equidigital number, since it uses as much as digits as its factorization.

8972259797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40007520, while the sum is 65.

The square root of 8972259797 is about 94722.0132651328. The cubic root of 8972259797 is about 2077.9445144195.

The spelling of 8972259797 in words is "eight billion, nine hundred seventy-two million, two hundred fifty-nine thousand, seven hundred ninety-seven".