19986614 has 8 divisors (see below), whose sum is σ = 30106080. Its totient is φ = 9951256.

The previous prime is 19986583. The next prime is 19986619. The reversal of 19986614 is 41668991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19986619) 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 3 ways as a sum of consecutive naturals, for example, 20429 + ... + 21384.

It is an arithmetic number, because the mean of its divisors is an integer number (3763260).

Almost surely, 2^19986614 is an apocalyptic number.

19986614 is a deficient number, since it is larger than the sum of its proper divisors (10119466).

19986614 is a wasteful number, since it uses less digits than its factorization.

19986614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42054.

The product of its digits is 93312, while the sum is 44.

The square root of 19986614 is about 4470.6391041998. The cubic root of 19986614 is about 271.3811894868.

The spelling of 19986614 in words is "nineteen million, nine hundred eighty-six thousand, six hundred fourteen".