2387897 has 2 divisors, whose sum is σ = 2387898. Its totient is φ = 2387896.

The previous prime is 2387873. The next prime is 2387909. The reversal of 2387897 is 7987832.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1585081 + 802816 = 1259^2 + 896^2 .

It is a cyclic number.

It is not a de Polignac number, because 2387897 - 2¹⁰ = 2386873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2387807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1193948 + 1193949.

It is an arithmetic number, because the mean of its divisors is an integer number (1193949).

2^2387897 is an apocalyptic number.

It is an amenable number.

2387897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2387897 is an equidigital number, since it uses as much as digits as its factorization.

2387897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 2387897 is about 1545.2821748794. The cubic root of 2387897 is about 133.6611509952.

The spelling of 2387897 in words is "two million, three hundred eighty-seven thousand, eight hundred ninety-seven".