23072211 has 12 divisors (see below), whose sum is σ = 33435792. Its totient is φ = 15331056.

The previous prime is 23072207. The next prime is 23072233. The reversal of 23072211 is 11227032.

It is not a de Polignac number, because 23072211 - 2² = 23072207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23072261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1191 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (2786316).

Almost surely, 2^23072211 is an apocalyptic number.

23072211 is a deficient number, since it is larger than the sum of its proper divisors (10363581).

23072211 is a wasteful number, since it uses less digits than its factorization.

23072211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410 (or 8407 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 23072211 is about 4803.3541405980. The cubic root of 23072211 is about 284.6840080395.

Adding to 23072211 its reverse (11227032), we get a palindrome (34299243).

The spelling of 23072211 in words is "twenty-three million, seventy-two thousand, two hundred eleven".