23509007 has 2 divisors, whose sum is σ = 23509008. Its totient is φ = 23509006.

The previous prime is 23508997. The next prime is 23509019. The reversal of 23509007 is 70090532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23509007 - 2¹² = 23504911 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 (23539007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11754503 + 11754504.

It is an arithmetic number, because the mean of its divisors is an integer number (11754504).

Almost surely, 2^23509007 is an apocalyptic number.

23509007 is a deficient number, since it is larger than the sum of its proper divisors (1).

23509007 is an equidigital number, since it uses as much as digits as its factorization.

23509007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 23509007 is about 4848.6087695338. The cubic root of 23509007 is about 286.4693054436.

Adding to 23509007 its reverse (70090532), we get a palindrome (93599539).

The spelling of 23509007 in words is "twenty-three million, five hundred nine thousand, seven".