2423987897 has 2 divisors, whose sum is σ = 2423987898. Its totient is φ = 2423987896.

The previous prime is 2423987887. The next prime is 2423987899. The reversal of 2423987897 is 7987893242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1534994041 + 888993856 = 39179^2 + 29816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2423987897 is a prime.

Together with 2423987899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2423987899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211993948 + 1211993949.

It is an arithmetic number, because the mean of its divisors is an integer number (1211993949).

Almost surely, 2^2423987897 is an apocalyptic number.

It is an amenable number.

2423987897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2423987897 is an equidigital number, since it uses as much as digits as its factorization.

2423987897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 59.

The square root of 2423987897 is about 49234.0115875195. The cubic root of 2423987897 is about 1343.3117565895.

The spelling of 2423987897 in words is "two billion, four hundred twenty-three million, nine hundred eighty-seven thousand, eight hundred ninety-seven".