2297987 has 2 divisors, whose sum is σ = 2297988. Its totient is φ = 2297986.

The previous prime is 2297983. The next prime is 2298007. The reversal of 2297987 is 7897922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2297987 - 2² = 2297983 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2297983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1148993 + 1148994.

It is an arithmetic number, because the mean of its divisors is an integer number (1148994).

2^2297987 is an apocalyptic number.

2297987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2297987 is an equidigital number, since it uses as much as digits as its factorization.

2297987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 44.

The square root of 2297987 is about 1515.9112770872. The cubic root of 2297987 is about 131.9620911955.

The spelling of 2297987 in words is "two million, two hundred ninety-seven thousand, nine hundred eighty-seven".