23463221 has 2 divisors, whose sum is σ = 23463222. Its totient is φ = 23463220.

The previous prime is 23463191. The next prime is 23463239. The reversal of 23463221 is 12236432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22800625 + 662596 = 4775^2 + 814^2 .

It is a cyclic number.

It is not a de Polignac number, because 23463221 - 2¹⁴ = 23446837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23463241) 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, 11731610 + 11731611.

It is an arithmetic number, because the mean of its divisors is an integer number (11731611).

Almost surely, 2^23463221 is an apocalyptic number.

It is an amenable number.

23463221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23463221 is an equidigital number, since it uses as much as digits as its factorization.

23463221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 23463221 is about 4843.8849077987. The cubic root of 23463221 is about 286.2832092818.

Adding to 23463221 its reverse (12236432), we get a palindrome (35699653).

The spelling of 23463221 in words is "twenty-three million, four hundred sixty-three thousand, two hundred twenty-one".