23199621 has 8 divisors (see below), whose sum is σ = 31394784. Its totient is φ = 15235440.

The previous prime is 23199613. The next prime is 23199677. The reversal of 23199621 is 12699132.

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

It is not a de Polignac number, because 23199621 - 2³ = 23199613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23199601) 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, 57510 + ... + 57911.

It is an arithmetic number, because the mean of its divisors is an integer number (3924348).

Almost surely, 2^23199621 is an apocalyptic number.

It is an amenable number.

23199621 is a deficient number, since it is larger than the sum of its proper divisors (8195163).

23199621 is a wasteful number, since it uses less digits than its factorization.

23199621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115491.

The product of its digits is 5832, while the sum is 33.

The square root of 23199621 is about 4816.5984885602. The cubic root of 23199621 is about 285.2070763443.

The spelling of 23199621 in words is "twenty-three million, one hundred ninety-nine thousand, six hundred twenty-one".