23421033 has 6 divisors (see below), whose sum is σ = 33830394. Its totient is φ = 15614016.

The previous prime is 23421031. The next prime is 23421049. The reversal of 23421033 is 33012432.

It can be written as a sum of positive squares in only one way, i.e., 23299929 + 121104 = 4827^2 + 348^2 .

It is not a de Polignac number, because 23421033 - 2¹ = 23421031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23420997 and 23421015.

It is not an unprimeable number, because it can be changed into a prime (23421031) 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 5 ways as a sum of consecutive naturals, for example, 1301160 + ... + 1301177.

It is an arithmetic number, because the mean of its divisors is an integer number (5638399).

Almost surely, 2^23421033 is an apocalyptic number.

It is an amenable number.

23421033 is a deficient number, since it is larger than the sum of its proper divisors (10409361).

23421033 is a wasteful number, since it uses less digits than its factorization.

23421033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602343 (or 2602340 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23421033 is about 4839.5281794820. The cubic root of 23421033 is about 286.1115226800. Note that the first 3 decimals are identical.

Adding to 23421033 its reverse (33012432), we get a palindrome (56433465).

It can be divided in two parts, 2342 and 1033, that added together give a cube (3375 = 15³).

The spelling of 23421033 in words is "twenty-three million, four hundred twenty-one thousand, thirty-three".