23224309 has 2 divisors, whose sum is σ = 23224310. Its totient is φ = 23224308.

The previous prime is 23224297. The next prime is 23224351. The reversal of 23224309 is 90342232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23136100 + 88209 = 4810^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 23224309 - 2¹⁵ = 23191541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23224609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11612154 + 11612155.

It is an arithmetic number, because the mean of its divisors is an integer number (11612155).

Almost surely, 2^23224309 is an apocalyptic number.

It is an amenable number.

23224309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23224309 is an equidigital number, since it uses as much as digits as its factorization.

23224309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 23224309 is about 4819.1606115588. The cubic root of 23224309 is about 285.3082086880.

The spelling of 23224309 in words is "twenty-three million, two hundred twenty-four thousand, three hundred nine".