2861700091 has 2 divisors, whose sum is σ = 2861700092. Its totient is φ = 2861700090.

The previous prime is 2861700071. The next prime is 2861700097. The reversal of 2861700091 is 1900071682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2861700091 - 2⁵ = 2861700059 is a prime.

It is not a weakly prime, because it can be changed into another prime (2861700097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430850045 + 1430850046.

It is an arithmetic number, because the mean of its divisors is an integer number (1430850046).

Almost surely, 2^2861700091 is an apocalyptic number.

2861700091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2861700091 is an equidigital number, since it uses as much as digits as its factorization.

2861700091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 2861700091 is about 53494.8604166793. The cubic root of 2861700091 is about 1419.7374524517.

The spelling of 2861700091 in words is "two billion, eight hundred sixty-one million, seven hundred thousand, ninety-one".