23421027 has 16 divisors (see below), whose sum is σ = 36841472. Its totient is φ = 12951360.

The previous prime is 23421017. The next prime is 23421031. The reversal of 23421027 is 72012432.

It is not a de Polignac number, because 23421027 - 2¹⁴ = 23404643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23420994 and 23421012.

It is not an unprimeable number, because it can be changed into a prime (23421017) 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 15 ways as a sum of consecutive naturals, for example, 17338 + ... + 18639.

It is an arithmetic number, because the mean of its divisors is an integer number (2302592).

Almost surely, 2^23421027 is an apocalyptic number.

23421027 is a deficient number, since it is larger than the sum of its proper divisors (13420445).

23421027 is a wasteful number, since it uses less digits than its factorization.

23421027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36018.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23421027 is about 4839.5275595868. The cubic root of 23421027 is about 286.1114982480. Note that the first 3 decimals are identical.

Adding to 23421027 its reverse (72012432), we get a palindrome (95433459).

The spelling of 23421027 in words is "twenty-three million, four hundred twenty-one thousand, twenty-seven".