2059861 has 2 divisors, whose sum is σ = 2059862. Its totient is φ = 2059860.

The previous prime is 2059859. The next prime is 2059879. The reversal of 2059861 is 1689502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 12100 = 1431^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 2059861 - 2¹ = 2059859 is a prime.

Together with 2059859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2059891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1029930 + 1029931.

It is an arithmetic number, because the mean of its divisors is an integer number (1029931).

2^2059861 is an apocalyptic number.

It is an amenable number.

2059861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2059861 is an equidigital number, since it uses as much as digits as its factorization.

2059861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2059861 is about 1435.2215856794. The cubic root of 2059861 is about 127.2367707796.

The spelling of 2059861 in words is "two million, fifty-nine thousand, eight hundred sixty-one".