23320173 has 4 divisors (see below), whose sum is σ = 31093568. Its totient is φ = 15546780.

The previous prime is 23320151. The next prime is 23320181. The reversal of 23320173 is 37102332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23320173 - 2⁶ = 23320109 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 (23320133) 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, 3886693 + ... + 3886698.

It is an arithmetic number, because the mean of its divisors is an integer number (7773392).

Almost surely, 2^23320173 is an apocalyptic number.

It is an amenable number.

23320173 is a deficient number, since it is larger than the sum of its proper divisors (7773395).

23320173 is an equidigital number, since it uses as much as digits as its factorization.

23320173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773394.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 23320173 is about 4829.0964993464. The cubic root of 23320173 is about 285.7002295347.

The spelling of 23320173 in words is "twenty-three million, three hundred twenty thousand, one hundred seventy-three".