1680733929 has 16 divisors (see below), whose sum is σ = 2579548160. Its totient is φ = 953508240.

The previous prime is 1680733921. The next prime is 1680733931. The reversal of 1680733929 is 9293370861.

It is not a de Polignac number, because 1680733929 - 2³ = 1680733921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1680733921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284977 + ... + 290814.

It is an arithmetic number, because the mean of its divisors is an integer number (161221760).

Almost surely, 2^1680733929 is an apocalyptic number.

It is an amenable number.

1680733929 is a deficient number, since it is larger than the sum of its proper divisors (898814231).

1680733929 is a wasteful number, since it uses less digits than its factorization.

1680733929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575940.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 1680733929 is about 40996.7551033006. The cubic root of 1680733929 is about 1188.9574771237.

The spelling of 1680733929 in words is "one billion, six hundred eighty million, seven hundred thirty-three thousand, nine hundred twenty-nine".