19848985 has 8 divisors (see below), whose sum is σ = 25651080. Its totient is φ = 14657664.

The previous prime is 19848967. The next prime is 19849019. The reversal of 19848985 is 58984891.

It can be written as a sum of positive squares in 4 ways, for example, as 594441 + 19254544 = 771^2 + 4388^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 19848985 - 2⁹ = 19848473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152620 + ... + 152749.

It is an arithmetic number, because the mean of its divisors is an integer number (3206385).

Almost surely, 2^19848985 is an apocalyptic number.

It is an amenable number.

19848985 is a deficient number, since it is larger than the sum of its proper divisors (5802095).

19848985 is a wasteful number, since it uses less digits than its factorization.

19848985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305387.

The product of its digits is 829440, while the sum is 52.

The square root of 19848985 is about 4455.2199721226. The cubic root of 19848985 is about 270.7568385676.

The spelling of 19848985 in words is "nineteen million, eight hundred forty-eight thousand, nine hundred eighty-five".