8707997 has 2 divisors, whose sum is σ = 8707998. Its totient is φ = 8707996.

The previous prime is 8707969. The next prime is 8707999. The reversal of 8707997 is 7997078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7958041 + 749956 = 2821^2 + 866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8707997 is a prime.

Together with 8707999, 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 (8707999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4353998 + 4353999.

It is an arithmetic number, because the mean of its divisors is an integer number (4353999).

Almost surely, 2^8707997 is an apocalyptic number.

It is an amenable number.

8707997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8707997 is an equidigital number, since it uses as much as digits as its factorization.

8707997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 47.

The square root of 8707997 is about 2950.9315478337. The cubic root of 8707997 is about 205.7340096048.

The spelling of 8707997 in words is "eight million, seven hundred seven thousand, nine hundred ninety-seven".