1227823 has 4 divisors (see below), whose sum is σ = 1230768. Its totient is φ = 1224880.

The previous prime is 1227797. The next prime is 1227829. The reversal of 1227823 is 3287221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1227823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (307692).

2^1227823 is an apocalyptic number.

1227823 is a deficient number, since it is larger than the sum of its proper divisors (2945).

1227823 is an equidigital number, since it uses as much as digits as its factorization.

1227823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944.

The product of its digits is 1344, while the sum is 25.

The square root of 1227823 is about 1108.0717485795. The cubic root of 1227823 is about 107.0808775076.

The spelling of 1227823 in words is "one million, two hundred twenty-seven thousand, eight hundred twenty-three".