2006291 has 4 divisors (see below), whose sum is σ = 2292912. Its totient is φ = 1719672.

The previous prime is 2006287. The next prime is 2006297. The reversal of 2006291 is 1926002.

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

It is a cyclic number.

It is not a de Polignac number, because 2006291 - 2² = 2006287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2006297) 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, 143300 + ... + 143313.

It is an arithmetic number, because the mean of its divisors is an integer number (573228).

2^2006291 is an apocalyptic number.

2006291 is a deficient number, since it is larger than the sum of its proper divisors (286621).

2006291 is an equidigital number, since it uses as much as digits as its factorization.

2006291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286620.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2006291 is about 1416.4360204400. The cubic root of 2006291 is about 126.1240694434.

The spelling of 2006291 in words is "two million, six thousand, two hundred ninety-one".