23016621 has 8 divisors (see below), whose sum is σ = 31437504. Its totient is φ = 14970080.

The previous prime is 23016613. The next prime is 23016641. The reversal of 23016621 is 12661032.

It is a happy number.

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 23016621 - 2³ = 23016613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23016611) 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, 93441 + ... + 93686.

It is an arithmetic number, because the mean of its divisors is an integer number (3929688).

Almost surely, 2^23016621 is an apocalyptic number.

It is an amenable number.

23016621 is a deficient number, since it is larger than the sum of its proper divisors (8420883).

23016621 is a wasteful number, since it uses less digits than its factorization.

23016621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187171.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 23016621 is about 4797.5640694002. The cubic root of 23016621 is about 284.4551857120.

Adding to 23016621 its reverse (12661032), we get a palindrome (35677653).

The spelling of 23016621 in words is "twenty-three million, sixteen thousand, six hundred twenty-one".