2287990687 has 2 divisors, whose sum is σ = 2287990688. Its totient is φ = 2287990686.

The previous prime is 2287990643. The next prime is 2287990703. The reversal of 2287990687 is 7860997822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2287990687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2287990637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1143995343 + 1143995344.

It is an arithmetic number, because the mean of its divisors is an integer number (1143995344).

Almost surely, 2^2287990687 is an apocalyptic number.

2287990687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287990687 is an equidigital number, since it uses as much as digits as its factorization.

2287990687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The square root of 2287990687 is about 47832.9456232835. The cubic root of 2287990687 is about 1317.7046670535.

The spelling of 2287990687 in words is "two billion, two hundred eighty-seven million, nine hundred ninety thousand, six hundred eighty-seven".