2690887 has 2 divisors, whose sum is σ = 2690888. Its totient is φ = 2690886.

The previous prime is 2690851. The next prime is 2690911. The reversal of 2690887 is 7880962.

2690887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2690887 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345443 + 1345444.

It is an arithmetic number, because the mean of its divisors is an integer number (1345444).

2^2690887 is an apocalyptic number.

2690887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690887 is an equidigital number, since it uses as much as digits as its factorization.

2690887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2690887 is about 1640.3923311208. The cubic root of 2690887 is about 139.0908262038.

The spelling of 2690887 in words is "two million, six hundred ninety thousand, eight hundred eighty-seven".