23705772 has 12 divisors (see below), whose sum is σ = 55313496. Its totient is φ = 7901920.

The previous prime is 23705761. The next prime is 23705777. The reversal of 23705772 is 27750732.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×23705772² = 1123927252231968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23705777) by changing a digit.

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, 987729 + ... + 987752.

It is an arithmetic number, because the mean of its divisors is an integer number (4609458).

Almost surely, 2^23705772 is an apocalyptic number.

It is an amenable number.

23705772 is an abundant number, since it is smaller than the sum of its proper divisors (31607724).

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

23705772 is a wasteful number, since it uses less digits than its factorization.

23705772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975488 (or 1975486 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 23705772 is about 4868.8573608189. The cubic root of 23705772 is about 287.2663134453.

The spelling of 23705772 in words is "twenty-three million, seven hundred five thousand, seven hundred seventy-two".