1983739669 has 8 divisors (see below), whose sum is σ = 2132576640. Its totient is φ = 1839345696.

The previous prime is 1983739657. The next prime is 1983739679. The reversal of 1983739669 is 9669373891.

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 1983739669 - 2¹¹ = 1983737621 is a prime.

It is a super-2 number, since 2×1983739669² = 7870446148728459122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983739649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109824 + ... + 1111609.

It is an arithmetic number, because the mean of its divisors is an integer number (266572080).

Almost surely, 2^1983739669 is an apocalyptic number.

1983739669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1983739669 is a deficient number, since it is larger than the sum of its proper divisors (148836971).

1983739669 is a wasteful number, since it uses less digits than its factorization.

1983739669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221499.

The product of its digits is 13226976, while the sum is 61.

The square root of 1983739669 is about 44539.1925050286. The cubic root of 1983739669 is about 1256.4972989580.

The spelling of 1983739669 in words is "one billion, nine hundred eighty-three million, seven hundred thirty-nine thousand, six hundred sixty-nine".