1204723 has 4 divisors (see below), whose sum is σ = 1297408. Its totient is φ = 1112040.

The previous prime is 1204711. The next prime is 1204729. The reversal of 1204723 is 3274021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3274021 = 227 ⋅14423.

It is a cyclic number.

It is not a de Polignac number, because 1204723 - 2¹⁷ = 1073651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204723.

It is not an unprimeable number, because it can be changed into a prime (1204729) 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, 46323 + ... + 46348.

It is an arithmetic number, because the mean of its divisors is an integer number (324352).

2^1204723 is an apocalyptic number.

1204723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1204723 is a deficient number, since it is larger than the sum of its proper divisors (92685).

1204723 is an equidigital number, since it uses as much as digits as its factorization.

1204723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92684.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1204723 is about 1097.5987427107. The cubic root of 1204723 is about 106.4050893132.

Adding to 1204723 its reverse (3274021), we get a palindrome (4478744).

The spelling of 1204723 in words is "one million, two hundred four thousand, seven hundred twenty-three".