8605997 has 2 divisors, whose sum is σ = 8605998. Its totient is φ = 8605996.

The previous prime is 8605963. The next prime is 8605999. The reversal of 8605997 is 7995068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8561476 + 44521 = 2926^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 8605997 - 2¹⁴ = 8589613 is a prime.

Together with 8605999, 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 (8605999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4302998 + 4302999.

It is an arithmetic number, because the mean of its divisors is an integer number (4302999).

Almost surely, 2^8605997 is an apocalyptic number.

It is an amenable number.

8605997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8605997 is an equidigital number, since it uses as much as digits as its factorization.

8605997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 8605997 is about 2933.5979615482. The cubic root of 8605997 is about 204.9275730660.

The spelling of 8605997 in words is "eight million, six hundred five thousand, nine hundred ninety-seven".