23022971 has 4 divisors (see below), whose sum is σ = 23118744. Its totient is φ = 22927200.

The previous prime is 23022953. The next prime is 23023001. The reversal of 23022971 is 17922032.

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-23022971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23022971.

It is not an unprimeable number, because it can be changed into a prime (23022911) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 47525 + ... + 48006.

It is an arithmetic number, because the mean of its divisors is an integer number (5779686).

Almost surely, 2^23022971 is an apocalyptic number.

23022971 is a deficient number, since it is larger than the sum of its proper divisors (95773).

23022971 is an equidigital number, since it uses as much as digits as its factorization.

23022971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95772.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 23022971 is about 4798.2258179456. The cubic root of 23022971 is about 284.4813425249.

The spelling of 23022971 in words is "twenty-three million, twenty-two thousand, nine hundred seventy-one".