2774891 has 4 divisors (see below), whose sum is σ = 3171312. Its totient is φ = 2378472.

The previous prime is 2774873. The next prime is 2774897. The reversal of 2774891 is 1984772.

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 2774891 - 2¹⁴ = 2758507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2774897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198200 + ... + 198213.

It is an arithmetic number, because the mean of its divisors is an integer number (792828).

2^2774891 is an apocalyptic number.

2774891 is a deficient number, since it is larger than the sum of its proper divisors (396421).

2774891 is an equidigital number, since it uses as much as digits as its factorization.

2774891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396420.

The product of its digits is 28224, while the sum is 38.

The square root of 2774891 is about 1665.8004082122. The cubic root of 2774891 is about 140.5233979514.

The spelling of 2774891 in words is "two million, seven hundred seventy-four thousand, eight hundred ninety-one".