1981676983 has 8 divisors (see below), whose sum is σ = 2328124176. Its totient is φ = 1662945600.

The previous prime is 1981676951. The next prime is 1981676989. The reversal of 1981676983 is 3896761891.

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 1981676983 - 2⁵ = 1981676951 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 (1981676989) 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, 6928798 + ... + 6929083.

It is an arithmetic number, because the mean of its divisors is an integer number (291015522).

Almost surely, 2^1981676983 is an apocalyptic number.

1981676983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1981676983 is a deficient number, since it is larger than the sum of its proper divisors (346447193).

1981676983 is a wasteful number, since it uses less digits than its factorization.

1981676983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13857905.

The product of its digits is 3919104, while the sum is 58.

The square root of 1981676983 is about 44516.0306294261. The cubic root of 1981676983 is about 1256.0616473369.

The spelling of 1981676983 in words is "one billion, nine hundred eighty-one million, six hundred seventy-six thousand, nine hundred eighty-three".