23721214 has 16 divisors (see below), whose sum is σ = 38952576. Its totient is φ = 10744600.

The previous prime is 23721199. The next prime is 23721221. The reversal of 23721214 is 41212732.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5109 + ... + 8575.

It is an arithmetic number, because the mean of its divisors is an integer number (2434536).

Almost surely, 2^23721214 is an apocalyptic number.

23721214 is a deficient number, since it is larger than the sum of its proper divisors (15231362).

23721214 is a wasteful number, since it uses less digits than its factorization.

23721214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791.

The product of its digits is 672, while the sum is 22.

The square root of 23721214 is about 4870.4428956718. The cubic root of 23721214 is about 287.3286752415.

Adding to 23721214 its reverse (41212732), we get a palindrome (64933946).

The spelling of 23721214 in words is "twenty-three million, seven hundred twenty-one thousand, two hundred fourteen".