2070861 has 16 divisors (see below), whose sum is σ = 3077760. Its totient is φ = 1229760.

The previous prime is 2070839. The next prime is 2070863. The reversal of 2070861 is 1680702.

It is not a de Polignac number, because 2070861 - 2⁶ = 2070797 is a prime.

It is a Curzon number.

2070861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (192360).

2^2070861 is an apocalyptic number.

It is an amenable number.

2070861 is a deficient number, since it is larger than the sum of its proper divisors (1006899).

2070861 is a wasteful number, since it uses less digits than its factorization.

2070861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 2070861 is about 1439.0486440701. The cubic root of 2070861 is about 127.4628573085.

The spelling of 2070861 in words is "two million, seventy thousand, eight hundred sixty-one".