2097859 has 2 divisors, whose sum is σ = 2097860. Its totient is φ = 2097858.

The previous prime is 2097857. The next prime is 2097883. The reversal of 2097859 is 9587902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2097859 - 2¹ = 2097857 is a prime.

Together with 2097857, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2097857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048929 + 1048930.

It is an arithmetic number, because the mean of its divisors is an integer number (1048930).

2^2097859 is an apocalyptic number.

2097859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097859 is an equidigital number, since it uses as much as digits as its factorization.

2097859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 2097859 is about 1448.3987710572. The cubic root of 2097859 is about 128.0143823357.

It can be divided in two parts, 20 and 97859, that added together give a palindrome (97879).

The spelling of 2097859 in words is "two million, ninety-seven thousand, eight hundred fifty-nine".