2774881 has 4 divisors (see below), whose sum is σ = 2895552. Its totient is φ = 2654212.

The previous prime is 2774873. The next prime is 2774897. The reversal of 2774881 is 1884772.

2774881 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2774881 - 2³ = 2774873 is a prime.

It is a super-2 number, since 2×2774881² = 15399929128322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2774881.

It is not an unprimeable number, because it can be changed into a prime (2774801) 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, 60301 + ... + 60346.

It is an arithmetic number, because the mean of its divisors is an integer number (723888).

2^2774881 is an apocalyptic number.

It is an amenable number.

2774881 is a deficient number, since it is larger than the sum of its proper divisors (120671).

2774881 is a wasteful number, since it uses less digits than its factorization.

2774881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120670.

The product of its digits is 25088, while the sum is 37.

The square root of 2774881 is about 1665.7974066494. The cubic root of 2774881 is about 140.5232291477.

It can be divided in two parts, 2774 and 881, that added together give a triangular number (3655 = T₈₅).

The spelling of 2774881 in words is "two million, seven hundred seventy-four thousand, eight hundred eighty-one".