1686800328 has 32 divisors (see below), whose sum is σ = 4222186560. Its totient is φ = 561575360.

The previous prime is 1686800327. The next prime is 1686800329. The reversal of 1686800328 is 8230086861.

It is an interprime number because it is at equal distance from previous prime (1686800327) and next prime (1686800329).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1686800328.

It is not an unprimeable number, because it can be changed into a prime (1686800327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23100 + ... + 62507.

It is an arithmetic number, because the mean of its divisors is an integer number (131943330).

Almost surely, 2^1686800328 is an apocalyptic number.

It is an amenable number.

1686800328 is an abundant number, since it is smaller than the sum of its proper divisors (2535386232).

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

1686800328 is a wasteful number, since it uses less digits than its factorization.

1686800328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86437 (or 86433 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1686800328 is about 41070.6747935799. The cubic root of 1686800328 is about 1190.3862239976.

The spelling of 1686800328 in words is "one billion, six hundred eighty-six million, eight hundred thousand, three hundred twenty-eight".