2273923 has 2 divisors, whose sum is σ = 2273924. Its totient is φ = 2273922.

The previous prime is 2273911. The next prime is 2273927. The reversal of 2273923 is 3293722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2273923 is a prime.

2273923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2273891 and 2273900.

It is not a weakly prime, because it can be changed into another prime (2273927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136961 + 1136962.

It is an arithmetic number, because the mean of its divisors is an integer number (1136962).

2^2273923 is an apocalyptic number.

2273923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273923 is an equidigital number, since it uses as much as digits as its factorization.

2273923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 2273923 is about 1507.9532486122. The cubic root of 2273923 is about 131.4998481977.

It can be divided in two parts, 22 and 73923, that multiplied together give a triangular number (1626306 = T₁₈₀₃).

The spelling of 2273923 in words is "two million, two hundred seventy-three thousand, nine hundred twenty-three".