23213473 has 2 divisors, whose sum is σ = 23213474. Its totient is φ = 23213472.

The previous prime is 23213447. The next prime is 23213479. The reversal of 23213473 is 37431232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21790224 + 1423249 = 4668^2 + 1193^2 .

It is a cyclic number.

It is not a de Polignac number, because 23213473 - 2⁹ = 23212961 is a prime.

It is not a weakly prime, because it can be changed into another prime (23213479) 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 as a sum of consecutive naturals, namely, 11606736 + 11606737.

It is an arithmetic number, because the mean of its divisors is an integer number (11606737).

Almost surely, 2^23213473 is an apocalyptic number.

It is an amenable number.

23213473 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213473 is an equidigital number, since it uses as much as digits as its factorization.

23213473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 25.

The square root of 23213473 is about 4818.0362182117. The cubic root of 23213473 is about 285.2638287426.

The spelling of 23213473 in words is "twenty-three million, two hundred thirteen thousand, four hundred seventy-three".