23580421 has 4 divisors (see below), whose sum is σ = 23596000. Its totient is φ = 23564844.

The previous prime is 23580413. The next prime is 23580437. The reversal of 23580421 is 12408532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23580421 - 2³ = 23580413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23586421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5241 + ... + 8638.

It is an arithmetic number, because the mean of its divisors is an integer number (5899000).

Almost surely, 2^23580421 is an apocalyptic number.

It is an amenable number.

23580421 is a deficient number, since it is larger than the sum of its proper divisors (15579).

23580421 is a wasteful number, since it uses less digits than its factorization.

23580421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15578.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 23580421 is about 4855.9675657895. The cubic root of 23580421 is about 286.7590842882.

Adding to 23580421 its reverse (12408532), we get a palindrome (35988953).

It can be divided in two parts, 235 and 80421, that added together give a square (80656 = 284²).

The spelling of 23580421 in words is "twenty-three million, five hundred eighty thousand, four hundred twenty-one".