2065971 has 4 divisors (see below), whose sum is σ = 2754632. Its totient is φ = 1377312.

The previous prime is 2065967. The next prime is 2065991. The reversal of 2065971 is 1795602.

2065971 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2065971 - 2² = 2065967 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2065961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344326 + ... + 344331.

It is an arithmetic number, because the mean of its divisors is an integer number (688658).

2^2065971 is an apocalyptic number.

2065971 is a deficient number, since it is larger than the sum of its proper divisors (688661).

2065971 is an equidigital number, since it uses as much as digits as its factorization.

2065971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688660.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 2065971 is about 1437.3486007229. The cubic root of 2065971 is about 127.3624506630.

The spelling of 2065971 in words is "two million, sixty-five thousand, nine hundred seventy-one".