23909441 has 2 divisors, whose sum is σ = 23909442. Its totient is φ = 23909440.

The previous prime is 23909423. The next prime is 23909449. The reversal of 23909441 is 14490932.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21893041 + 2016400 = 4679^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 23909441 - 2¹⁴ = 23893057 is a prime.

It is a super-2 number, since 2×23909441² = 1143322737864962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23909398 and 23909407.

It is not a weakly prime, because it can be changed into another prime (23909449) 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, 11954720 + 11954721.

It is an arithmetic number, because the mean of its divisors is an integer number (11954721).

Almost surely, 2^23909441 is an apocalyptic number.

It is an amenable number.

23909441 is a deficient number, since it is larger than the sum of its proper divisors (1).

23909441 is an equidigital number, since it uses as much as digits as its factorization.

23909441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 23909441 is about 4889.7281110508. The cubic root of 23909441 is about 288.0866548977.

The spelling of 23909441 in words is "twenty-three million, nine hundred nine thousand, four hundred forty-one".