23887947 has 8 divisors (see below), whose sum is σ = 31906000. Its totient is φ = 15897600.

The previous prime is 23887937. The next prime is 23887951. The reversal of 23887947 is 74978832.

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

It is not a de Polignac number, because 23887947 - 2⁸ = 23887691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23887896 and 23887905.

It is not an unprimeable number, because it can be changed into a prime (23887937) 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, 4822 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (3988250).

Almost surely, 2^23887947 is an apocalyptic number.

23887947 is a deficient number, since it is larger than the sum of its proper divisors (8018053).

23887947 is a wasteful number, since it uses less digits than its factorization.

23887947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853.

The product of its digits is 677376, while the sum is 48.

The square root of 23887947 is about 4887.5297441550. The cubic root of 23887947 is about 288.0003014079. Note that the first 3 decimals are identical.

The spelling of 23887947 in words is "twenty-three million, eight hundred eighty-seven thousand, nine hundred forty-seven".