2791015 has 4 divisors (see below), whose sum is σ = 3349224. Its totient is φ = 2232808.

The previous prime is 2791007. The next prime is 2791031. The reversal of 2791015 is 5101972.

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 2791015 - 2³ = 2791007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279097 + ... + 279106.

It is an arithmetic number, because the mean of its divisors is an integer number (837306).

2^2791015 is an apocalyptic number.

2791015 is a deficient number, since it is larger than the sum of its proper divisors (558209).

2791015 is an equidigital number, since it uses as much as digits as its factorization.

2791015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558208.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 2791015 is about 1670.6331135231. The cubic root of 2791015 is about 140.7950512368.

Adding to 2791015 its reverse (5101972), we get a palindrome (7892987).

The spelling of 2791015 in words is "two million, seven hundred ninety-one thousand, fifteen".