1680217883 has 4 divisors (see below), whose sum is σ = 1682986560. Its totient is φ = 1677449208.

The previous prime is 1680217867. The next prime is 1680217909. The reversal of 1680217883 is 3887120861.

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 1680217883 - 2⁴ = 1680217867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680217853) 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, 1383428 + ... + 1384641.

It is an arithmetic number, because the mean of its divisors is an integer number (420746640).

Almost surely, 2^1680217883 is an apocalyptic number.

1680217883 is a deficient number, since it is larger than the sum of its proper divisors (2768677).

1680217883 is an equidigital number, since it uses as much as digits as its factorization.

1680217883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768676.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1680217883 is about 40990.4608781116. The cubic root of 1680217883 is about 1188.8357803766.

The spelling of 1680217883 in words is "one billion, six hundred eighty million, two hundred seventeen thousand, eight hundred eighty-three".