7985897 has 2 divisors, whose sum is σ = 7985898. Its totient is φ = 7985896.

The previous prime is 7985893. The next prime is 7985927.

7985897 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4541161 + 3444736 = 2131^2 + 1856^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 7985897 - 2² = 7985893 is a prime.

It is not a weakly prime, because it can be changed into another prime (7985893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992948 + 3992949.

It is an arithmetic number, because the mean of its divisors is an integer number (3992949).

Almost surely, 2^7985897 is an apocalyptic number.

It is an amenable number.

7985897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7985897 is an equidigital number, since it uses as much as digits as its factorization.

7985897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 53.

The square root of 7985897 is about 2825.9329432950. The cubic root of 7985897 is about 199.8824058717.

The spelling of 7985897 in words is "seven million, nine hundred eighty-five thousand, eight hundred ninety-seven".