23310409 has 2 divisors, whose sum is σ = 23310410. Its totient is φ = 23310408.

The previous prime is 23310401. The next prime is 23310437. The reversal of 23310409 is 90401332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20839225 + 2471184 = 4565^2 + 1572^2 .

It is a cyclic number.

It is not a de Polignac number, because 23310409 - 2³ = 23310401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23310409.

It is not a weakly prime, because it can be changed into another prime (23310401) 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, 11655204 + 11655205.

It is an arithmetic number, because the mean of its divisors is an integer number (11655205).

Almost surely, 2^23310409 is an apocalyptic number.

It is an amenable number.

23310409 is a deficient number, since it is larger than the sum of its proper divisors (1).

23310409 is an equidigital number, since it uses as much as digits as its factorization.

23310409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23310409 is about 4828.0854383492. The cubic root of 23310409 is about 285.6603503786.

The spelling of 23310409 in words is "twenty-three million, three hundred ten thousand, four hundred nine".