23123998 has 4 divisors (see below), whose sum is σ = 34686000. Its totient is φ = 11561998.

The previous prime is 23123987. The next prime is 23124019. The reversal of 23123998 is 89932132.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5780998 + ... + 5781001.

It is an arithmetic number, because the mean of its divisors is an integer number (8671500).

Almost surely, 2^23123998 is an apocalyptic number.

23123998 is a deficient number, since it is larger than the sum of its proper divisors (11562002).

23123998 is a wasteful number, since it uses less digits than its factorization.

23123998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11562001.

The product of its digits is 23328, while the sum is 37.

The square root of 23123998 is about 4808.7418312902. The cubic root of 23123998 is about 284.8968458119.

The spelling of 23123998 in words is "twenty-three million, one hundred twenty-three thousand, nine hundred ninety-eight".