23365009 has 2 divisors, whose sum is σ = 23365010. Its totient is φ = 23365008.

The previous prime is 23364973. The next prime is 23365051. The reversal of 23365009 is 90056332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22420225 + 944784 = 4735^2 + 972^2 .

It is a cyclic number.

It is not a de Polignac number, because 23365009 - 2⁷ = 23364881 is a prime.

It is not a weakly prime, because it can be changed into another prime (23365409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11682504 + 11682505.

It is an arithmetic number, because the mean of its divisors is an integer number (11682505).

Almost surely, 2^23365009 is an apocalyptic number.

It is an amenable number.

23365009 is a deficient number, since it is larger than the sum of its proper divisors (1).

23365009 is an equidigital number, since it uses as much as digits as its factorization.

23365009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 23365009 is about 4833.7365463997. The cubic root of 23365009 is about 285.8832106651.

The spelling of 23365009 in words is "twenty-three million, three hundred sixty-five thousand, nine".