23931982 has 16 divisors (see below), whose sum is σ = 38071440. Its totient is φ = 11251008.

The previous prime is 23931979. The next prime is 23932003. The reversal of 23931982 is 28913932.

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 7 ways as a sum of consecutive naturals, for example, 2908 + ... + 7504.

It is an arithmetic number, because the mean of its divisors is an integer number (2379465).

Almost surely, 2^23931982 is an apocalyptic number.

23931982 is a deficient number, since it is larger than the sum of its proper divisors (14139458).

23931982 is a wasteful number, since it uses less digits than its factorization.

23931982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755.

The product of its digits is 23328, while the sum is 37.

The square root of 23931982 is about 4892.0325019362. The cubic root of 23931982 is about 288.1771591977.

The spelling of 23931982 in words is "twenty-three million, nine hundred thirty-one thousand, nine hundred eighty-two".