19923673 has 16 divisors (see below), whose sum is σ = 24944256. Its totient is φ = 15459840.

The previous prime is 19923641. The next prime is 19923689. The reversal of 19923673 is 37632991.

It is not a de Polignac number, because 19923673 - 2⁵ = 19923641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19923073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26815 + ... + 27547.

It is an arithmetic number, because the mean of its divisors is an integer number (1559016).

Almost surely, 2^19923673 is an apocalyptic number.

It is an amenable number.

19923673 is a deficient number, since it is larger than the sum of its proper divisors (5020583).

19923673 is a wasteful number, since it uses less digits than its factorization.

19923673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its digits is 61236, while the sum is 40.

The square root of 19923673 is about 4463.5941795822. The cubic root of 19923673 is about 271.0960158677.

It can be divided in two parts, 1992 and 3673, that added together give a palindrome (5665).

The spelling of 19923673 in words is "nineteen million, nine hundred twenty-three thousand, six hundred seventy-three".