2085782687 has 2 divisors, whose sum is σ = 2085782688. Its totient is φ = 2085782686.

The previous prime is 2085782593. The next prime is 2085782701. The reversal of 2085782687 is 7862875802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2085782687 - 2³⁰ = 1012040863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2085788687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042891343 + 1042891344.

It is an arithmetic number, because the mean of its divisors is an integer number (1042891344).

Almost surely, 2^2085782687 is an apocalyptic number.

2085782687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085782687 is an equidigital number, since it uses as much as digits as its factorization.

2085782687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The square root of 2085782687 is about 45670.3699021587. The cubic root of 2085782687 is about 1277.6827147153.

The spelling of 2085782687 in words is "two billion, eighty-five million, seven hundred eighty-two thousand, six hundred eighty-seven".