2086862917 has 2 divisors, whose sum is σ = 2086862918. Its totient is φ = 2086862916.

The previous prime is 2086862903. The next prime is 2086862927. The reversal of 2086862917 is 7192686802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002204516 + 84658401 = 44746^2 + 9201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2086862917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2086862927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043431458 + 1043431459.

It is an arithmetic number, because the mean of its divisors is an integer number (1043431459).

Almost surely, 2^2086862917 is an apocalyptic number.

It is an amenable number.

2086862917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2086862917 is an equidigital number, since it uses as much as digits as its factorization.

2086862917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 2086862917 is about 45682.1947480635. The cubic root of 2086862917 is about 1277.9032479167.

The spelling of 2086862917 in words is "two billion, eighty-six million, eight hundred sixty-two thousand, nine hundred seventeen".