23780217 has 8 divisors (see below), whose sum is σ = 31764960. Its totient is φ = 15824480.

The previous prime is 23780189. The next prime is 23780221. The reversal of 23780217 is 71208732.

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 23780217 - 2¹⁰ = 23779193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23780017) 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, 5259 + ... + 8672.

It is an arithmetic number, because the mean of its divisors is an integer number (3970620).

Almost surely, 2^23780217 is an apocalyptic number.

It is an amenable number.

23780217 is a deficient number, since it is larger than the sum of its proper divisors (7984743).

23780217 is a wasteful number, since it uses less digits than its factorization.

23780217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14503.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 23780217 is about 4876.4963857261. The cubic root of 23780217 is about 287.5667071424.

Adding to 23780217 its reverse (71208732), we get a palindrome (94988949).

The spelling of 23780217 in words is "twenty-three million, seven hundred eighty thousand, two hundred seventeen".