23320709 has 2 divisors, whose sum is σ = 23320710. Its totient is φ = 23320708.

The previous prime is 23320699. The next prime is 23320777. The reversal of 23320709 is 90702332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 11035684 = 3505^2 + 3322^2 .

It is a cyclic number.

It is not a de Polignac number, because 23320709 - 2¹⁶ = 23255173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23320109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660354 + 11660355.

It is an arithmetic number, because the mean of its divisors is an integer number (11660355).

Almost surely, 2^23320709 is an apocalyptic number.

It is an amenable number.

23320709 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320709 is an equidigital number, since it uses as much as digits as its factorization.

23320709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 23320709 is about 4829.1519959513. The cubic root of 23320709 is about 285.7024183999.

The spelling of 23320709 in words is "twenty-three million, three hundred twenty thousand, seven hundred nine".