23353421 has 16 divisors (see below), whose sum is σ = 28863744. Its totient is φ = 18399744.

The previous prime is 23353417. The next prime is 23353457. The reversal of 23353421 is 12435332.

It is a cyclic number.

It is not a de Polignac number, because 23353421 - 2² = 23353417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23353411) 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, 31760 + ... + 32486.

It is an arithmetic number, because the mean of its divisors is an integer number (1803984).

Almost surely, 2^23353421 is an apocalyptic number.

It is an amenable number.

23353421 is a deficient number, since it is larger than the sum of its proper divisors (5510323).

23353421 is a wasteful number, since it uses less digits than its factorization.

23353421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its digits is 2160, while the sum is 23.

The square root of 23353421 is about 4832.5377391180. The cubic root of 23353421 is about 285.8359410854.

Adding to 23353421 its reverse (12435332), we get a palindrome (35788753).

The spelling of 23353421 in words is "twenty-three million, three hundred fifty-three thousand, four hundred twenty-one".