23080309 has 4 divisors (see below), whose sum is σ = 26377504. Its totient is φ = 19783116.

The previous prime is 23080303. The next prime is 23080333. The reversal of 23080309 is 90308032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23080309 - 2³ = 23080301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23080301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1648587 + ... + 1648600.

It is an arithmetic number, because the mean of its divisors is an integer number (6594376).

Almost surely, 2^23080309 is an apocalyptic number.

It is an amenable number.

23080309 is a deficient number, since it is larger than the sum of its proper divisors (3297195).

23080309 is an equidigital number, since it uses as much as digits as its factorization.

23080309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297194.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 23080309 is about 4804.1970192739. The cubic root of 23080309 is about 284.7173107491.

The spelling of 23080309 in words is "twenty-three million, eighty thousand, three hundred nine".