1682685905 has 8 divisors (see below), whose sum is σ = 2049361152. Its totient is φ = 1326056688.

The previous prime is 1682685899. The next prime is 1682685919. The reversal of 1682685905 is 5095862861.

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

It is a cyclic number.

It is not a de Polignac number, because 1682685905 - 2¹⁰ = 1682684881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511137 + ... + 2511806.

It is an arithmetic number, because the mean of its divisors is an integer number (256170144).

Almost surely, 2^1682685905 is an apocalyptic number.

It is an amenable number.

1682685905 is a deficient number, since it is larger than the sum of its proper divisors (366675247).

1682685905 is an equidigital number, since it uses as much as digits as its factorization.

1682685905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023015.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The square root of 1682685905 is about 41020.5546647044. The cubic root of 1682685905 is about 1189.4175774301.

The spelling of 1682685905 in words is "one billion, six hundred eighty-two million, six hundred eighty-five thousand, nine hundred five".