23949221 has 8 divisors (see below), whose sum is σ = 24602400. Its totient is φ = 23304400.

The previous prime is 23949193. The next prime is 23949227. The reversal of 23949221 is 12294932.

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

It is a cyclic number.

It is not a de Polignac number, because 23949221 - 2¹⁸ = 23687077 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 (23949227) 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, 3950 + ... + 7968.

It is an arithmetic number, because the mean of its divisors is an integer number (3075300).

Almost surely, 2^23949221 is an apocalyptic number.

It is an amenable number.

23949221 is a deficient number, since it is larger than the sum of its proper divisors (653179).

23949221 is a wasteful number, since it uses less digits than its factorization.

23949221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179.

The product of its digits is 7776, while the sum is 32.

The square root of 23949221 is about 4893.7941313464. The cubic root of 23949221 is about 288.2463371103.

The spelling of 23949221 in words is "twenty-three million, nine hundred forty-nine thousand, two hundred twenty-one".