23851982 has 16 divisors (see below), whose sum is σ = 44606592. Its totient is φ = 9292920.

The previous prime is 23851981. The next prime is 23851987. The reversal of 23851982 is 28915832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23851981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77288 + ... + 77595.

It is an arithmetic number, because the mean of its divisors is an integer number (2787912).

Almost surely, 2^23851982 is an apocalyptic number.

23851982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23851982 is a deficient number, since it is larger than the sum of its proper divisors (20754610).

23851982 is a wasteful number, since it uses less digits than its factorization.

23851982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154903.

The product of its digits is 34560, while the sum is 38.

The square root of 23851982 is about 4883.8490967678. The cubic root of 23851982 is about 287.8556938450.

The spelling of 23851982 in words is "twenty-three million, eight hundred fifty-one thousand, nine hundred eighty-two".