23421843 has 12 divisors (see below), whose sum is σ = 35302800. Its totient is φ = 14935536.

The previous prime is 23421823. The next prime is 23421847. The reversal of 23421843 is 34812432.

It is not a de Polignac number, because 23421843 - 2⁹ = 23421331 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23421847) 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 11 ways as a sum of consecutive naturals, for example, 56368 + ... + 56781.

It is an arithmetic number, because the mean of its divisors is an integer number (2941900).

Almost surely, 2^23421843 is an apocalyptic number.

23421843 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23421843 is a deficient number, since it is larger than the sum of its proper divisors (11880957).

23421843 is a wasteful number, since it uses less digits than its factorization.

23421843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113178 (or 113175 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 23421843 is about 4839.6118646024. The cubic root of 23421843 is about 286.1148209641.

The spelling of 23421843 in words is "twenty-three million, four hundred twenty-one thousand, eight hundred forty-three".