2065671 has 6 divisors (see below), whose sum is σ = 2983760. Its totient is φ = 1377108.

The previous prime is 2065669. The next prime is 2065711. The reversal of 2065671 is 1765602.

2065671 is a `hidden beast` number, since 2 + 0 + 656 + 7 + 1 = 666.

It is not a de Polignac number, because 2065671 - 2¹ = 2065669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114751 + ... + 114768.

2^2065671 is an apocalyptic number.

2065671 is a deficient number, since it is larger than the sum of its proper divisors (918089).

2065671 is a wasteful number, since it uses less digits than its factorization.

2065671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229525 (or 229522 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2065671 is about 1437.2442381168. The cubic root of 2065671 is about 127.3562855902.

The spelling of 2065671 in words is "two million, sixty-five thousand, six hundred seventy-one".