19676983 has 4 divisors (see below), whose sum is σ = 20532528. Its totient is φ = 18821440.

The previous prime is 19676977. The next prime is 19677019. The reversal of 19676983 is 38967691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19676983 - 2¹³ = 19668791 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 (19676963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427738 + ... + 427783.

It is an arithmetic number, because the mean of its divisors is an integer number (5133132).

Almost surely, 2^19676983 is an apocalyptic number.

19676983 is a deficient number, since it is larger than the sum of its proper divisors (855545).

19676983 is an equidigital number, since it uses as much as digits as its factorization.

19676983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855544.

The product of its digits is 489888, while the sum is 49.

The square root of 19676983 is about 4435.8745473694. The cubic root of 19676983 is about 269.9724846217.

The spelling of 19676983 in words is "nineteen million, six hundred seventy-six thousand, nine hundred eighty-three".