23117478 has 8 divisors (see below), whose sum is σ = 46234968. Its totient is φ = 7705824.

The previous prime is 23117477. The next prime is 23117513. The reversal of 23117478 is 87471132.

It is a happy number.

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

23117478 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23117477) 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 3 ways as a sum of consecutive naturals, for example, 1926451 + ... + 1926462.

It is an arithmetic number, because the mean of its divisors is an integer number (5779371).

Almost surely, 2^23117478 is an apocalyptic number.

23117478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23117478 is a wasteful number, since it uses less digits than its factorization.

23117478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852918.

The product of its digits is 9408, while the sum is 33.

The square root of 23117478 is about 4808.0638514895. The cubic root of 23117478 is about 284.8700669645.

The spelling of 23117478 in words is "twenty-three million, one hundred seventeen thousand, four hundred seventy-eight".