2277881 has 4 divisors (see below), whose sum is σ = 2411892. Its totient is φ = 2143872.

The previous prime is 2277871. The next prime is 2277883. The reversal of 2277881 is 1887722.

2277881 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 1392400 + 885481 = 1180^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 2277881 - 2⁶ = 2277817 is a prime.

It is a super-2 number, since 2×2277881² = 10377483700322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 7² + 7⁵ + 8⁵ + 8⁷ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2277883) 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, 66980 + ... + 67013.

It is an arithmetic number, because the mean of its divisors is an integer number (602973).

2^2277881 is an apocalyptic number.

It is an amenable number.

2277881 is a deficient number, since it is larger than the sum of its proper divisors (134011).

2277881 is a wasteful number, since it uses less digits than its factorization.

2277881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134010.

The product of its digits is 12544, while the sum is 35.

The square root of 2277881 is about 1509.2650529314. The cubic root of 2277881 is about 131.5761003707.

The spelling of 2277881 in words is "two million, two hundred seventy-seven thousand, eight hundred eighty-one".