23871870 has 48 divisors (see below), whose sum is σ = 67712112. Its totient is φ = 5786880.

The previous prime is 23871863. The next prime is 23871937. The reversal of 23871870 is 7817832.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11067 + ... + 13046.

It is an arithmetic number, because the mean of its divisors is an integer number (1410669).

Almost surely, 2^23871870 is an apocalyptic number.

23871870 is an abundant number, since it is smaller than the sum of its proper divisors (43840242).

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

23871870 is a wasteful number, since it uses less digits than its factorization.

23871870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24137 (or 24134 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 23871870 is about 4885.8847714616. The cubic root of 23871870 is about 287.9356771859.

The spelling of 23871870 in words is "twenty-three million, eight hundred seventy-one thousand, eight hundred seventy".