23104009 has 2 divisors, whose sum is σ = 23104010. Its totient is φ = 23104008.

The previous prime is 23104007. The next prime is 23104013. The reversal of 23104009 is 90040132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23040000 + 64009 = 4800^2 + 253^2 .

It is a cyclic number.

It is not a de Polignac number, because 23104009 - 2¹ = 23104007 is a prime.

Together with 23104007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23104007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11552004 + 11552005.

It is an arithmetic number, because the mean of its divisors is an integer number (11552005).

Almost surely, 2^23104009 is an apocalyptic number.

It is an amenable number.

23104009 is a deficient number, since it is larger than the sum of its proper divisors (1).

23104009 is an equidigital number, since it uses as much as digits as its factorization.

23104009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 23104009 is about 4806.6629796565. The cubic root of 23104009 is about 284.8147313386.

It can be divided in two parts, 2310400 and 9, that multiplied together give a square (20793600 = 4560²).

The spelling of 23104009 in words is "twenty-three million, one hundred four thousand, nine".