23321449 has 2 divisors, whose sum is σ = 23321450. Its totient is φ = 23321448.

The previous prime is 23321443. The next prime is 23321477. The reversal of 23321449 is 94412332.

It is an a-pointer prime, because the next prime (23321477) can be obtained adding 23321449 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12299049 + 11022400 = 3507^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 23321449 - 2⁷ = 23321321 is a prime.

It is not a weakly prime, because it can be changed into another prime (23321443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660724 + 11660725.

It is an arithmetic number, because the mean of its divisors is an integer number (11660725).

Almost surely, 2^23321449 is an apocalyptic number.

It is an amenable number.

23321449 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321449 is an equidigital number, since it uses as much as digits as its factorization.

23321449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 23321449 is about 4829.2286133502. The cubic root of 23321449 is about 285.7054402857.

The spelling of 23321449 in words is "twenty-three million, three hundred twenty-one thousand, four hundred forty-nine".