23200447 has 4 divisors (see below), whose sum is σ = 23297760. Its totient is φ = 23103136.

The previous prime is 23200433. The next prime is 23200451. The reversal of 23200447 is 74400232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23200447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23200417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48298 + ... + 48775.

It is an arithmetic number, because the mean of its divisors is an integer number (5824440).

Almost surely, 2^23200447 is an apocalyptic number.

23200447 is a deficient number, since it is larger than the sum of its proper divisors (97313).

23200447 is an equidigital number, since it uses as much as digits as its factorization.

23200447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97312.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 23200447 is about 4816.6842329553. The cubic root of 23200447 is about 285.2104611446.

Adding to 23200447 its reverse (74400232), we get a palindrome (97600679).

The spelling of 23200447 in words is "twenty-three million, two hundred thousand, four hundred forty-seven".