23281705 has 8 divisors (see below), whose sum is σ = 28588032. Its totient is φ = 18192048.

The previous prime is 23281673. The next prime is 23281711. The reversal of 23281705 is 50718232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23281705 - 2⁵ = 23281673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53929 + ... + 54358.

It is an arithmetic number, because the mean of its divisors is an integer number (3573504).

Almost surely, 2^23281705 is an apocalyptic number.

It is an amenable number.

23281705 is a deficient number, since it is larger than the sum of its proper divisors (5306327).

23281705 is a wasteful number, since it uses less digits than its factorization.

23281705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108335.

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

The square root of 23281705 is about 4825.1119158005. Note that the first 3 decimals coincide. The cubic root of 23281705 is about 285.5430499541.

Adding to 23281705 its reverse (50718232), we get a palindrome (73999937).

The spelling of 23281705 in words is "twenty-three million, two hundred eighty-one thousand, seven hundred five".