23730213 has 16 divisors (see below), whose sum is σ = 34655040. Its totient is φ = 14354304.

The previous prime is 23730211. The next prime is 23730229. The reversal of 23730213 is 31203732.

It is not a de Polignac number, because 23730213 - 2¹ = 23730211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23730213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23730211) 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, 2856 + ... + 7457.

It is an arithmetic number, because the mean of its divisors is an integer number (2165940).

Almost surely, 2^23730213 is an apocalyptic number.

It is an amenable number.

23730213 is a deficient number, since it is larger than the sum of its proper divisors (10924827).

23730213 is a wasteful number, since it uses less digits than its factorization.

23730213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10388.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 23730213 is about 4871.3666460245. The cubic root of 23730213 is about 287.3650048021.

Adding to 23730213 its reverse (31203732), we get a palindrome (54933945).

It can be divided in two parts, 23 and 730213, that added together give a triangular number (730236 = T₁₂₀₈).

The spelling of 23730213 in words is "twenty-three million, seven hundred thirty thousand, two hundred thirteen".