2791005 has 32 divisors (see below), whose sum is σ = 5376000. Its totient is φ = 1207872.

The previous prime is 2790979. The next prime is 2791007. The reversal of 2791005 is 5001972.

It is not a de Polignac number, because 2791005 - 2¹² = 2786909 is a prime.

It is a Curzon number.

2791005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1296 + ... + 2694.

It is an arithmetic number, because the mean of its divisors is an integer number (168000).

2^2791005 is an apocalyptic number.

It is an amenable number.

2791005 is a deficient number, since it is larger than the sum of its proper divisors (2584995).

2791005 is a wasteful number, since it uses less digits than its factorization.

2791005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 2791005 is about 1670.6301206431. The cubic root of 2791005 is about 140.7948830839.

Adding to 2791005 its reverse (5001972), we get a palindrome (7792977).

The spelling of 2791005 in words is "two million, seven hundred ninety-one thousand, five".