2059981 has 16 divisors (see below), whose sum is σ = 2654208. Its totient is φ = 1551600.

The previous prime is 2059979. The next prime is 2060021. The reversal of 2059981 is 1899502.

It is a cyclic number.

It is not a de Polignac number, because 2059981 - 2¹ = 2059979 is a prime.

It is a super-2 number, since 2×2059981² = 8487043440722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2059921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1956 + ... + 2818.

It is an arithmetic number, because the mean of its divisors is an integer number (165888).

2^2059981 is an apocalyptic number.

It is an amenable number.

2059981 is a deficient number, since it is larger than the sum of its proper divisors (594227).

2059981 is a wasteful number, since it uses less digits than its factorization.

2059981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2059981 is about 1435.2633904618. The cubic root of 2059981 is about 127.2392415153.

The spelling of 2059981 in words is "two million, fifty-nine thousand, nine hundred eighty-one".