2785838287 has 2 divisors, whose sum is σ = 2785838288. Its totient is φ = 2785838286.

The previous prime is 2785838243. The next prime is 2785838327. The reversal of 2785838287 is 7828385872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2785838287 is a prime.

It is a super-2 number, since 2×2785838287² = 15521789922630188738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2785838227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392919143 + 1392919144.

It is an arithmetic number, because the mean of its divisors is an integer number (1392919144).

Almost surely, 2^2785838287 is an apocalyptic number.

2785838287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785838287 is an equidigital number, since it uses as much as digits as its factorization.

2785838287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12042240, while the sum is 58.

The square root of 2785838287 is about 52781.0409806400. The cubic root of 2785838287 is about 1407.0794951235.

The spelling of 2785838287 in words is "two billion, seven hundred eighty-five million, eight hundred thirty-eight thousand, two hundred eighty-seven".