2791081 has 8 divisors (see below), whose sum is σ = 2980800. Its totient is φ = 2605680.

The previous prime is 2791069. The next prime is 2791091. The reversal of 2791081 is 1801972.

2791081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2791081 - 2⁹ = 2790569 is a prime.

It is a super-2 number, since 2×2791081² = 15580266297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2791031) 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 7 ways as a sum of consecutive naturals, for example, 315 + ... + 2383.

It is an arithmetic number, because the mean of its divisors is an integer number (372600).

2^2791081 is an apocalyptic number.

It is an amenable number.

2791081 is a deficient number, since it is larger than the sum of its proper divisors (189719).

2791081 is a wasteful number, since it uses less digits than its factorization.

2791081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2791081 is about 1670.6528663968. The cubic root of 2791081 is about 140.7961610362.

The spelling of 2791081 in words is "two million, seven hundred ninety-one thousand, eighty-one".