19868073 has 8 divisors (see below), whose sum is σ = 26940000. Its totient is φ = 13020768.

The previous prime is 19868063. The next prime is 19868077. The reversal of 19868073 is 37086891.

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

It is not a de Polignac number, because 19868073 - 2⁸ = 19867817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19868077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55948 + ... + 56301.

It is an arithmetic number, because the mean of its divisors is an integer number (3367500).

Almost surely, 2^19868073 is an apocalyptic number.

It is an amenable number.

19868073 is a deficient number, since it is larger than the sum of its proper divisors (7071927).

19868073 is a wasteful number, since it uses less digits than its factorization.

19868073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112311.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 19868073 is about 4457.3616635853. The cubic root of 19868073 is about 270.8436028821.

The spelling of 19868073 in words is "nineteen million, eight hundred sixty-eight thousand, seventy-three".