23173457 has 4 divisors (see below), whose sum is σ = 23294976. Its totient is φ = 23051940.

The previous prime is 23173441. The next prime is 23173471. The reversal of 23173457 is 75437132.

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 a cyclic number.

It is not a de Polignac number, because 23173457 - 2⁴ = 23173441 is a prime.

It is a super-3 number, since 3×23173457³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23173417) 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 3 ways as a sum of consecutive naturals, for example, 60473 + ... + 60854.

It is an arithmetic number, because the mean of its divisors is an integer number (5823744).

Almost surely, 2^23173457 is an apocalyptic number.

It is an amenable number.

23173457 is a deficient number, since it is larger than the sum of its proper divisors (121519).

23173457 is a wasteful number, since it uses less digits than its factorization.

23173457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121518.

The product of its digits is 17640, while the sum is 32.

The square root of 23173457 is about 4813.8816977570. The cubic root of 23173457 is about 285.0998193490.

The spelling of 23173457 in words is "twenty-three million, one hundred seventy-three thousand, four hundred fifty-seven".