23878905 has 8 divisors (see below), whose sum is σ = 38206272. Its totient is φ = 12735408.

The previous prime is 23878903. The next prime is 23878909. The reversal of 23878905 is 50987832.

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

It is not a de Polignac number, because 23878905 - 2¹ = 23878903 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (23878903) 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, 795949 + ... + 795978.

It is an arithmetic number, because the mean of its divisors is an integer number (4775784).

Almost surely, 2^23878905 is an apocalyptic number.

It is an amenable number.

23878905 is a deficient number, since it is larger than the sum of its proper divisors (14327367).

23878905 is a wasteful number, since it uses less digits than its factorization.

23878905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591935.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 23878905 is about 4886.6046494473. The cubic root of 23878905 is about 287.9639591281.

The spelling of 23878905 in words is "twenty-three million, eight hundred seventy-eight thousand, nine hundred five".