23173455 has 32 divisors (see below), whose sum is σ = 38278656. Its totient is φ = 11965824.

The previous prime is 23173441. The next prime is 23173471. The reversal of 23173455 is 55437132.

It is not a de Polignac number, because 23173455 - 2⁷ = 23173327 is a prime.

It is a super-3 number, since 3×23173455³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81744 + ... + 82026.

It is an arithmetic number, because the mean of its divisors is an integer number (1196208).

Almost surely, 2^23173455 is an apocalyptic number.

23173455 is a deficient number, since it is larger than the sum of its proper divisors (15105201).

23173455 is a wasteful number, since it uses less digits than its factorization.

23173455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447.

The product of its digits is 12600, while the sum is 30.

The square root of 23173455 is about 4813.8814900244. The cubic root of 23173455 is about 285.0998111471.

The spelling of 23173455 in words is "twenty-three million, one hundred seventy-three thousand, four hundred fifty-five".