23009807 has 2 divisors, whose sum is σ = 23009808. Its totient is φ = 23009806.

The previous prime is 23009803. The next prime is 23009839. The reversal of 23009807 is 70890032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23009807 - 2² = 23009803 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23009807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23009801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11504903 + 11504904.

It is an arithmetic number, because the mean of its divisors is an integer number (11504904).

Almost surely, 2^23009807 is an apocalyptic number.

23009807 is a deficient number, since it is larger than the sum of its proper divisors (1).

23009807 is an equidigital number, since it uses as much as digits as its factorization.

23009807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 23009807 is about 4796.8538647743. The cubic root of 23009807 is about 284.4271122466.

Adding to 23009807 its reverse (70890032), we get a palindrome (93899839).

The spelling of 23009807 in words is "twenty-three million, nine thousand, eight hundred seven".