8970807997 has 2 divisors, whose sum is σ = 8970807998. Its totient is φ = 8970807996.

The previous prime is 8970807983. The next prime is 8970808001. The reversal of 8970807997 is 7997080798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8940458916 + 30349081 = 94554^2 + 5509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8970807997 is a prime.

It is a super-2 number, since 2×8970807997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8970807907) 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, 4485403998 + 4485403999.

It is an arithmetic number, because the mean of its divisors is an integer number (4485403999).

Almost surely, 2^8970807997 is an apocalyptic number.

It is an amenable number.

8970807997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8970807997 is an equidigital number, since it uses as much as digits as its factorization.

8970807997 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 64.

The square root of 8970807997 is about 94714.3494777850. The cubic root of 8970807997 is about 2077.8324310781.

The spelling of 8970807997 in words is "eight billion, nine hundred seventy million, eight hundred seven thousand, nine hundred ninety-seven".