2065871 has 8 divisors (see below), whose sum is σ = 2156544. Its totient is φ = 1976760.

The previous prime is 2065841. The next prime is 2065879. The reversal of 2065871 is 1785602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2065871 - 2⁶ = 2065807 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2870 + ... + 3516.

It is an arithmetic number, because the mean of its divisors is an integer number (269568).

2^2065871 is an apocalyptic number.

2065871 is a deficient number, since it is larger than the sum of its proper divisors (90673).

2065871 is a wasteful number, since it uses less digits than its factorization.

2065871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2065871 is about 1437.3138140295. The cubic root of 2065871 is about 127.3603957051.

The spelling of 2065871 in words is "two million, sixty-five thousand, eight hundred seventy-one".