2086806947 has 2 divisors, whose sum is σ = 2086806948. Its totient is φ = 2086806946.

The previous prime is 2086806829. The next prime is 2086806959. The reversal of 2086806947 is 7496086802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2086806947 - 2⁸ = 2086806691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2086806895 and 2086806904.

It is not a weakly prime, because it can be changed into another prime (2086806647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043403473 + 1043403474.

It is an arithmetic number, because the mean of its divisors is an integer number (1043403474).

Almost surely, 2^2086806947 is an apocalyptic number.

2086806947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2086806947 is an equidigital number, since it uses as much as digits as its factorization.

2086806947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 2086806947 is about 45681.5821420406. The cubic root of 2086806947 is about 1277.8918232908.

The spelling of 2086806947 in words is "two billion, eighty-six million, eight hundred six thousand, nine hundred forty-seven".