23320949 has 2 divisors, whose sum is σ = 23320950. Its totient is φ = 23320948.

The previous prime is 23320943. The next prime is 23320963. The reversal of 23320949 is 94902332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22972849 + 348100 = 4793^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 23320949 - 2⁴ = 23320933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23320943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660474 + 11660475.

It is an arithmetic number, because the mean of its divisors is an integer number (11660475).

Almost surely, 2^23320949 is an apocalyptic number.

It is an amenable number.

23320949 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320949 is an equidigital number, since it uses as much as digits as its factorization.

23320949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 23320949 is about 4829.1768449706. The cubic root of 23320949 is about 285.7033984780.

The spelling of 23320949 in words is "twenty-three million, three hundred twenty thousand, nine hundred forty-nine".