23673309 has 24 divisors (see below), whose sum is σ = 35704032. Its totient is φ = 13836480.

The previous prime is 23673281. The next prime is 23673313. The reversal of 23673309 is 90337632.

It is not a de Polignac number, because 23673309 - 2⁸ = 23673053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 23673309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23673319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27327 + ... + 28179.

It is an arithmetic number, because the mean of its divisors is an integer number (1487668).

Almost surely, 2^23673309 is an apocalyptic number.

23673309 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23673309 is a deficient number, since it is larger than the sum of its proper divisors (12030723).

23673309 is a wasteful number, since it uses less digits than its factorization.

23673309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 23673309 is about 4865.5224796521. The cubic root of 23673309 is about 287.1351247710.

The spelling of 23673309 in words is "twenty-three million, six hundred seventy-three thousand, three hundred nine".