23086821 has 8 divisors (see below), whose sum is σ = 30822880. Its totient is φ = 15370992.

The previous prime is 23086807. The next prime is 23086837. The reversal of 23086821 is 12868032.

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

It is not a de Polignac number, because 23086821 - 2⁶ = 23086757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23086801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155 + ... + 7128.

It is an arithmetic number, because the mean of its divisors is an integer number (3852860).

Almost surely, 2^23086821 is an apocalyptic number.

It is an amenable number.

23086821 is a deficient number, since it is larger than the sum of its proper divisors (7736059).

23086821 is an equidigital number, since it uses as much as digits as its factorization.

23086821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 23086821 is about 4804.8747122063. The cubic root of 23086821 is about 284.7440854453.

The spelling of 23086821 in words is "twenty-three million, eighty-six thousand, eight hundred twenty-one".