1226723 has 4 divisors (see below), whose sum is σ = 1232448. Its totient is φ = 1221000.

The previous prime is 1226713. The next prime is 1226741. The reversal of 1226723 is 3276221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3276221 = 13 ⋅252017.

It is a cyclic number.

It is not a de Polignac number, because 1226723 - 2⁴ = 1226707 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹⁷ + 2¹⁷ + 6⁵ + 7⁷ + 2¹⁷ + 3⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (308112).

2^1226723 is an apocalyptic number.

1226723 is a deficient number, since it is larger than the sum of its proper divisors (5725).

1226723 is an equidigital number, since it uses as much as digits as its factorization.

1226723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724.

The product of its digits is 1008, while the sum is 23.

The square root of 1226723 is about 1107.5752796086. The cubic root of 1226723 is about 107.0488902266.

The spelling of 1226723 in words is "one million, two hundred twenty-six thousand, seven hundred twenty-three".