1671906860 has 36 divisors (see below), whose sum is σ = 3801864528. Its totient is φ = 617318208.

The previous prime is 1671906857. The next prime is 1671906883. The reversal of 1671906860 is 686091761.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243944 + ... + 250703.

It is an arithmetic number, because the mean of its divisors is an integer number (105607348).

Almost surely, 2^1671906860 is an apocalyptic number.

1671906860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1671906860 is an abundant number, since it is smaller than the sum of its proper divisors (2129957668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1671906860 is a wasteful number, since it uses less digits than its factorization.

1671906860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494682 (or 494667 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1671906860 is about 40888.9576780822. The cubic root of 1671906860 is about 1186.8723887260.

The spelling of 1671906860 in words is "one billion, six hundred seventy-one million, nine hundred six thousand, eight hundred sixty".