19874885 has 8 divisors (see below), whose sum is σ = 23917056. Its totient is φ = 15855120.

The previous prime is 19874867. The next prime is 19874891. The reversal of 19874885 is 58847891.

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

It is not a de Polignac number, because 19874885 - 2⁶ = 19874821 is a prime.

It is a super-2 number, since 2×19874885² = 790022107526450, which contains 22 as substring.

It is a Duffinian number.

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 in 7 ways as a sum of consecutive naturals, for example, 3581 + ... + 7250.

It is an arithmetic number, because the mean of its divisors is an integer number (2989632).

Almost surely, 2^19874885 is an apocalyptic number.

It is an amenable number.

19874885 is a deficient number, since it is larger than the sum of its proper divisors (4042171).

19874885 is a wasteful number, since it uses less digits than its factorization.

19874885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11203.

The product of its digits is 645120, while the sum is 50.

The square root of 19874885 is about 4458.1257272536. The cubic root of 19874885 is about 270.8745533054.

The spelling of 19874885 in words is "nineteen million, eight hundred seventy-four thousand, eight hundred eighty-five".