23329973 has 4 divisors (see below), whose sum is σ = 23486700. Its totient is φ = 23173248.

The previous prime is 23329939. The next prime is 23329979. The reversal of 23329973 is 37992332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3598609 + 19731364 = 1897^2 + 4442^2 .

It is a cyclic number.

It is not a de Polignac number, because 23329973 - 2⁶ = 23329909 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 (23329979) 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, 78140 + ... + 78437.

It is an arithmetic number, because the mean of its divisors is an integer number (5871675).

Almost surely, 2^23329973 is an apocalyptic number.

It is an amenable number.

23329973 is a deficient number, since it is larger than the sum of its proper divisors (156727).

23329973 is a wasteful number, since it uses less digits than its factorization.

23329973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156726.

The product of its digits is 61236, while the sum is 38.

The square root of 23329973 is about 4830.1110753274. Note that the first 3 decimals coincide. The cubic root of 23329973 is about 285.7402445343.

The spelling of 23329973 in words is "twenty-three million, three hundred twenty-nine thousand, nine hundred seventy-three".