1682081 has 2 divisors, whose sum is σ = 1682082. Its totient is φ = 1682080.

The previous prime is 1682069. The next prime is 1682101. The reversal of 1682081 is 1802861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 43681 = 1280^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1682081 - 2⁶ = 1682017 is a prime.

It is a super-2 number, since 2×1682081² = 5658792981122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1682081.

It is not a weakly prime, because it can be changed into another prime (1682281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841040 + 841041.

It is an arithmetic number, because the mean of its divisors is an integer number (841041).

2^1682081 is an apocalyptic number.

It is an amenable number.

1682081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1682081 is an equidigital number, since it uses as much as digits as its factorization.

1682081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1682081 is about 1296.9506544198. The cubic root of 1682081 is about 118.9275033324.

The spelling of 1682081 in words is "one million, six hundred eighty-two thousand, eighty-one".