23400873 has 16 divisors (see below), whose sum is σ = 35515200. Its totient is φ = 15219360.

The previous prime is 23400869. The next prime is 23400887. The reversal of 23400873 is 37800432.

It is not a de Polignac number, because 23400873 - 2² = 23400869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23400803) 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 15 ways as a sum of consecutive naturals, for example, 9463 + ... + 11676.

It is an arithmetic number, because the mean of its divisors is an integer number (2219700).

Almost surely, 2^23400873 is an apocalyptic number.

It is an amenable number.

23400873 is a deficient number, since it is larger than the sum of its proper divisors (12114327).

23400873 is a wasteful number, since it uses less digits than its factorization.

23400873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21189 (or 21183 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 23400873 is about 4837.4448834069. Note that the first 3 decimals coincide. The cubic root of 23400873 is about 286.0294075422.

The spelling of 23400873 in words is "twenty-three million, four hundred thousand, eight hundred seventy-three".