1680088923 has 12 divisors (see below), whose sum is σ = 2472584400. Its totient is φ = 1098925776.

The previous prime is 1680088909. The next prime is 1680088961. The reversal of 1680088923 is 3298800861.

It is not a de Polignac number, because 1680088923 - 2⁸ = 1680088667 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1680080923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1760623 + ... + 1761576.

It is an arithmetic number, because the mean of its divisors is an integer number (206048700).

Almost surely, 2^1680088923 is an apocalyptic number.

1680088923 is a deficient number, since it is larger than the sum of its proper divisors (792495477).

1680088923 is a wasteful number, since it uses less digits than its factorization.

1680088923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522258 (or 3522255 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1680088923 is about 40988.8877990121. The cubic root of 1680088923 is about 1188.8053644434.

The spelling of 1680088923 in words is "one billion, six hundred eighty million, eighty-eight thousand, nine hundred twenty-three".