2277823 has 2 divisors, whose sum is σ = 2277824. Its totient is φ = 2277822.

The previous prime is 2277817. The next prime is 2277827. The reversal of 2277823 is 3287722.

2277823 is nontrivially palindromic in base 9.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2277823 - 2⁹ = 2277311 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁵ + 2¹⁷ + 7 + 7⁵ + 8 + 2²¹ + 3² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2277827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1138911 + 1138912.

It is an arithmetic number, because the mean of its divisors is an integer number (1138912).

2^2277823 is an apocalyptic number.

2277823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2277823 is an equidigital number, since it uses as much as digits as its factorization.

2277823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 31.

The square root of 2277823 is about 1509.2458381589. The cubic root of 2277823 is about 131.5749836195.

It can be divided in two parts, 22778 and 23, that added together give a square (22801 = 151²).

The spelling of 2277823 in words is "two million, two hundred seventy-seven thousand, eight hundred twenty-three".