23704321 has 2 divisors, whose sum is σ = 23704322. Its totient is φ = 23704320.

The previous prime is 23704297. The next prime is 23704327. The reversal of 23704321 is 12340732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19847025 + 3857296 = 4455^2 + 1964^2 .

It is a cyclic number.

It is not a de Polignac number, because 23704321 - 2⁷ = 23704193 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23704292 and 23704301.

It is not a weakly prime, because it can be changed into another prime (23704327) 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 as a sum of consecutive naturals, namely, 11852160 + 11852161.

It is an arithmetic number, because the mean of its divisors is an integer number (11852161).

Almost surely, 2^23704321 is an apocalyptic number.

It is an amenable number.

23704321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23704321 is an equidigital number, since it uses as much as digits as its factorization.

23704321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 23704321 is about 4868.7083502711. The cubic root of 23704321 is about 287.2604522578.

It can be divided in two parts, 23704 and 321, that added together give a square (24025 = 155²).

The spelling of 23704321 in words is "twenty-three million, seven hundred four thousand, three hundred twenty-one".