23959409 has 8 divisors (see below), whose sum is σ = 25411968. Its totient is φ = 22511680.

The previous prime is 23959393. The next prime is 23959417. The reversal of 23959409 is 90495932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23959409 - 2⁴ = 23959393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23959459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16844 + ... + 18210.

It is an arithmetic number, because the mean of its divisors is an integer number (3176496).

Almost surely, 2^23959409 is an apocalyptic number.

It is an amenable number.

23959409 is a deficient number, since it is larger than the sum of its proper divisors (1452559).

23959409 is a wasteful number, since it uses less digits than its factorization.

23959409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 23959409 is about 4894.8349308225. The cubic root of 23959409 is about 288.2872046520.

The spelling of 23959409 in words is "twenty-three million, nine hundred fifty-nine thousand, four hundred nine".