18741873 has 8 divisors (see below), whose sum is σ = 25009600. Its totient is φ = 12484368.

The previous prime is 18741839. The next prime is 18741883. The reversal of 18741873 is 37814781.

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

It is not a de Polignac number, because 18741873 - 2⁸ = 18741617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18741883) 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, 4548 + ... + 7626.

It is an arithmetic number, because the mean of its divisors is an integer number (3126200).

Almost surely, 2^18741873 is an apocalyptic number.

It is an amenable number.

18741873 is a deficient number, since it is larger than the sum of its proper divisors (6267727).

18741873 is a wasteful number, since it uses less digits than its factorization.

18741873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111.

The product of its digits is 37632, while the sum is 39.

The square root of 18741873 is about 4329.1884920849. The cubic root of 18741873 is about 265.6262535212.

The spelling of 18741873 in words is "eighteen million, seven hundred forty-one thousand, eight hundred seventy-three".