19648983 has 8 divisors (see below), whose sum is σ = 27577600. Its totient is φ = 12409848.

The previous prime is 19648949. The next prime is 19649011. The reversal of 19648983 is 38984691.

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

It is not a de Polignac number, because 19648983 - 2¹⁸ = 19386839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19648903) 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, 172303 + ... + 172416.

It is an arithmetic number, because the mean of its divisors is an integer number (3447200).

Almost surely, 2^19648983 is an apocalyptic number.

19648983 is a deficient number, since it is larger than the sum of its proper divisors (7928617).

19648983 is a wasteful number, since it uses less digits than its factorization.

19648983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344741.

The product of its digits is 373248, while the sum is 48.

The square root of 19648983 is about 4432.7173381573. The cubic root of 19648983 is about 269.8443684711.

The spelling of 19648983 in words is "nineteen million, six hundred forty-eight thousand, nine hundred eighty-three".