2086641197 has 2 divisors, whose sum is σ = 2086641198. Its totient is φ = 2086641196.

The previous prime is 2086641169. The next prime is 2086641203. The reversal of 2086641197 is 7911466802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1297368361 + 789272836 = 36019^2 + 28094^2 .

It is a cyclic number.

It is not a de Polignac number, because 2086641197 - 2¹⁶ = 2086575661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2086641157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043320598 + 1043320599.

It is an arithmetic number, because the mean of its divisors is an integer number (1043320599).

Almost surely, 2^2086641197 is an apocalyptic number.

It is an amenable number.

2086641197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2086641197 is an equidigital number, since it uses as much as digits as its factorization.

2086641197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2086641197 is about 45679.7679175365. The cubic root of 2086641197 is about 1277.8579891152.

The spelling of 2086641197 in words is "two billion, eighty-six million, six hundred forty-one thousand, one hundred ninety-seven".