23003421 has 8 divisors (see below), whose sum is σ = 35052864. Its totient is φ = 13144800.

The previous prime is 23003417. The next prime is 23003423. The reversal of 23003421 is 12430032.

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

It is not a de Polignac number, because 23003421 - 2² = 23003417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23003421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547680 + ... + 547721.

It is an arithmetic number, because the mean of its divisors is an integer number (4381608).

Almost surely, 2^23003421 is an apocalyptic number.

23003421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23003421 is a deficient number, since it is larger than the sum of its proper divisors (12049443).

23003421 is a wasteful number, since it uses less digits than its factorization.

23003421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095411.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23003421 is about 4796.1881739565. The cubic root of 23003421 is about 284.4007970962.

Adding to 23003421 its reverse (12430032), we get a palindrome (35433453).

The spelling of 23003421 in words is "twenty-three million, three thousand, four hundred twenty-one".