23705812 has 12 divisors (see below), whose sum is σ = 44676436. Its totient is φ = 10941120.

The previous prime is 23705807. The next prime is 23705827. The reversal of 23705812 is 21850732.

It can be written as a sum of positive squares in 2 ways, for example, as 15888196 + 7817616 = 3986^2 + 2796^2 .

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 3 ways as a sum of consecutive naturals, for example, 227889 + ... + 227992.

Almost surely, 2^23705812 is an apocalyptic number.

It is an amenable number.

23705812 is a deficient number, since it is larger than the sum of its proper divisors (20970624).

23705812 is a wasteful number, since it uses less digits than its factorization.

23705812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455898 (or 455896 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 23705812 is about 4868.8614685571. The cubic root of 23705812 is about 287.2664750185.

The spelling of 23705812 in words is "twenty-three million, seven hundred five thousand, eight hundred twelve".