23860221 has 16 divisors (see below), whose sum is σ = 39664128. Its totient is φ = 12394800.

The previous prime is 23860171. The next prime is 23860247. The reversal of 23860221 is 12206832.

It is not a de Polignac number, because 23860221 - 2¹¹ = 23858173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23860191 and 23860200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23860121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51415 + ... + 51876.

It is an arithmetic number, because the mean of its divisors is an integer number (2479008).

Almost surely, 2^23860221 is an apocalyptic number.

23860221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23860221 is a deficient number, since it is larger than the sum of its proper divisors (15803907).

23860221 is a wasteful number, since it uses less digits than its factorization.

23860221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103312.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 23860221 is about 4884.6925184703. The cubic root of 23860221 is about 287.8888339287. Note that the first 4 decimals are identical.

The spelling of 23860221 in words is "twenty-three million, eight hundred sixty thousand, two hundred twenty-one".