23905261 has 2 divisors, whose sum is σ = 23905262. Its totient is φ = 23905260.

The previous prime is 23905253. The next prime is 23905283. The reversal of 23905261 is 16250932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19980900 + 3924361 = 4470^2 + 1981^2 .

It is a cyclic number.

It is not a de Polignac number, because 23905261 - 2³ = 23905253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23905201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11952630 + 11952631.

It is an arithmetic number, because the mean of its divisors is an integer number (11952631).

Almost surely, 2^23905261 is an apocalyptic number.

It is an amenable number.

23905261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23905261 is an equidigital number, since it uses as much as digits as its factorization.

23905261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 23905261 is about 4889.3006657394. The cubic root of 23905261 is about 288.0698655410.

The spelling of 23905261 in words is "twenty-three million, nine hundred five thousand, two hundred sixty-one".