23678409 has 8 divisors (see below), whose sum is σ = 32424640. Its totient is φ = 15358896.

The previous prime is 23678393. The next prime is 23678437. The reversal of 23678409 is 90487632.

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

It is not a de Polignac number, because 23678409 - 2⁴ = 23678393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23678449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106549 + ... + 106770.

It is an arithmetic number, because the mean of its divisors is an integer number (4053080).

Almost surely, 2^23678409 is an apocalyptic number.

It is an amenable number.

23678409 is a deficient number, since it is larger than the sum of its proper divisors (8746231).

23678409 is a wasteful number, since it uses less digits than its factorization.

23678409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213359.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 23678409 is about 4866.0465472496. The cubic root of 23678409 is about 287.1557427025.

The spelling of 23678409 in words is "twenty-three million, six hundred seventy-eight thousand, four hundred nine".