2785292987 has 2 divisors, whose sum is σ = 2785292988. Its totient is φ = 2785292986.

The previous prime is 2785292977. The next prime is 2785292989. The reversal of 2785292987 is 7892925872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2785292987 is a prime.

Together with 2785292989, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (2785292989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392646493 + 1392646494.

It is an arithmetic number, because the mean of its divisors is an integer number (1392646494).

Almost surely, 2^2785292987 is an apocalyptic number.

2785292987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785292987 is an equidigital number, since it uses as much as digits as its factorization.

2785292987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 59.

The square root of 2785292987 is about 52775.8750472221. The cubic root of 2785292987 is about 1406.9876818836.

The spelling of 2785292987 in words is "two billion, seven hundred eighty-five million, two hundred ninety-two thousand, nine hundred eighty-seven".