2278873 has 4 divisors (see below), whose sum is σ = 2284708. Its totient is φ = 2273040.

The previous prime is 2278847. The next prime is 2278877. The reversal of 2278873 is 3788722.

2278873 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 170569 + 2108304 = 413^2 + 1452^2 .

It is a cyclic number.

It is not a de Polignac number, because 2278873 - 2⁹ = 2278361 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 2²¹ + 7 + 8² + 8² + 7³ + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2278877) 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, 2286 + ... + 3127.

It is an arithmetic number, because the mean of its divisors is an integer number (571177).

2^2278873 is an apocalyptic number.

It is an amenable number.

2278873 is a deficient number, since it is larger than the sum of its proper divisors (5835).

2278873 is an equidigital number, since it uses as much as digits as its factorization.

2278873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834.

The product of its digits is 37632, while the sum is 37.

The square root of 2278873 is about 1509.5936539347. The cubic root of 2278873 is about 131.5951977319.

The spelling of 2278873 in words is "two million, two hundred seventy-eight thousand, eight hundred seventy-three".