23284681 has 4 divisors (see below), whose sum is σ = 26611072. Its totient is φ = 19958292.

The previous prime is 23284673. The next prime is 23284687. The reversal of 23284681 is 18648232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23284681 - 2³ = 23284673 is a prime.

It is a super-2 number, since 2×23284681² = 1084352738543522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23284687) 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, 1663185 + ... + 1663198.

It is an arithmetic number, because the mean of its divisors is an integer number (6652768).

Almost surely, 2^23284681 is an apocalyptic number.

It is an amenable number.

23284681 is a deficient number, since it is larger than the sum of its proper divisors (3326391).

23284681 is an equidigital number, since it uses as much as digits as its factorization.

23284681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326390.

The product of its digits is 18432, while the sum is 34.

The square root of 23284681 is about 4825.4202925756. The cubic root of 23284681 is about 285.5552160149. Note that the first 3 decimals are identical.

The spelling of 23284681 in words is "twenty-three million, two hundred eighty-four thousand, six hundred eighty-one".