23066421 has 8 divisors (see below), whose sum is σ = 35148864. Its totient is φ = 13180800.

The previous prime is 23066413. The next prime is 23066423. The reversal of 23066421 is 12466032.

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

It is not a de Polignac number, because 23066421 - 2³ = 23066413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23066391 and 23066400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23066423) 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, 549180 + ... + 549221.

It is an arithmetic number, because the mean of its divisors is an integer number (4393608).

Almost surely, 2^23066421 is an apocalyptic number.

23066421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23066421 is a deficient number, since it is larger than the sum of its proper divisors (12082443).

23066421 is a wasteful number, since it uses less digits than its factorization.

23066421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098411.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23066421 is about 4802.7513989379. The cubic root of 23066421 is about 284.6601921120.

The spelling of 23066421 in words is "twenty-three million, sixty-six thousand, four hundred twenty-one".