1227923 has 4 divisors (see below), whose sum is σ = 1240680. Its totient is φ = 1215168.

The previous prime is 1227917. The next prime is 1227929. The reversal of 1227923 is 3297221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3297221 = 149 ⋅22129.

It is an interprime number because it is at equal distance from previous prime (1227917) and next prime (1227929).

It is a cyclic number.

It is not a de Polignac number, because 1227923 - 2¹⁰ = 1226899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1227892 and 1227901.

It is not an unprimeable number, because it can be changed into a prime (1227929) 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, 6233 + ... + 6426.

It is an arithmetic number, because the mean of its divisors is an integer number (310170).

2^1227923 is an apocalyptic number.

1227923 is a deficient number, since it is larger than the sum of its proper divisors (12757).

1227923 is an equidigital number, since it uses as much as digits as its factorization.

1227923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12756.

The product of its digits is 1512, while the sum is 26.

The square root of 1227923 is about 1108.1168710926. The cubic root of 1227923 is about 107.0837844948.

The spelling of 1227923 in words is "one million, two hundred twenty-seven thousand, nine hundred twenty-three".