2791361 has 4 divisors (see below), whose sum is σ = 2798724. Its totient is φ = 2784000.

The previous prime is 2791357. The next prime is 2791363. The reversal of 2791361 is 1631972.

2791361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2560000 + 231361 = 1600^2 + 481^2 .

It is a cyclic number.

It is not a de Polignac number, because 2791361 - 2² = 2791357 is a prime.

It is a super-3 number, since 3×2791361³ = 65248310960243336643, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2791363) 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 3 ways as a sum of consecutive naturals, for example, 3080 + ... + 3881.

It is an arithmetic number, because the mean of its divisors is an integer number (699681).

2^2791361 is an apocalyptic number.

It is an amenable number.

2791361 is a deficient number, since it is larger than the sum of its proper divisors (7363).

2791361 is an equidigital number, since it uses as much as digits as its factorization.

2791361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7362.

The product of its digits is 2268, while the sum is 29.

The square root of 2791361 is about 1670.7366638702. The cubic root of 2791361 is about 140.8008690815.

The spelling of 2791361 in words is "two million, seven hundred ninety-one thousand, three hundred sixty-one".