1685632882 has 8 divisors (see below), whose sum is σ = 2576156076. Its totient is φ = 826914192.

The previous prime is 1685632867. The next prime is 1685632889. The reversal of 1685632882 is 2882365861.

It can be written as a sum of positive squares in 2 ways, for example, as 1653154281 + 32478601 = 40659^2 + 5699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1685632889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7950993 + ... + 7951204.

Almost surely, 2^1685632882 is an apocalyptic number.

1685632882 is a deficient number, since it is larger than the sum of its proper divisors (890523194).

1685632882 is a wasteful number, since it uses less digits than its factorization.

1685632882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15902252.

The product of its digits is 1105920, while the sum is 49.

The square root of 1685632882 is about 41056.4596866315. The cubic root of 1685632882 is about 1190.1115358113. Note that the first 3 decimals are identical.

The spelling of 1685632882 in words is "one billion, six hundred eighty-five million, six hundred thirty-two thousand, eight hundred eighty-two".