2059661 has 2 divisors, whose sum is σ = 2059662. Its totient is φ = 2059660.

The previous prime is 2059649. The next prime is 2059697. The reversal of 2059661 is 1669502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1705636 + 354025 = 1306^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2059661 - 2¹⁴ = 2043277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2059621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1029830 + 1029831.

It is an arithmetic number, because the mean of its divisors is an integer number (1029831).

2^2059661 is an apocalyptic number.

It is an amenable number.

2059661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2059661 is an equidigital number, since it uses as much as digits as its factorization.

2059661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 2059661 is about 1435.1519083358. The cubic root of 2059661 is about 127.2326526736.

The spelling of 2059661 in words is "two million, fifty-nine thousand, six hundred sixty-one".