19873023 has 8 divisors (see below), whose sum is σ = 26544000. Its totient is φ = 13225368.

The previous prime is 19873013. The next prime is 19873079. The reversal of 19873023 is 32037891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19873023 - 2⁵ = 19872991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19873013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3733 + ... + 7326.

It is an arithmetic number, because the mean of its divisors is an integer number (3318000).

Almost surely, 2^19873023 is an apocalyptic number.

19873023 is a deficient number, since it is larger than the sum of its proper divisors (6670977).

19873023 is a wasteful number, since it uses less digits than its factorization.

19873023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 19873023 is about 4457.9168902078. The cubic root of 19873023 is about 270.8660939831.

The spelling of 19873023 in words is "nineteen million, eight hundred seventy-three thousand, twenty-three".