1680102 has 24 divisors (see below), whose sum is σ = 3776136. Its totient is φ = 559872.

The previous prime is 1680101. The next prime is 1680103. The reversal of 1680102 is 2010861.

It is an interprime number because it is at equal distance from previous prime (1680101) and next prime (1680103).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1243 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (157339).

2^1680102 is an apocalyptic number.

1680102 is an abundant number, since it is smaller than the sum of its proper divisors (2096034).

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

1680102 is an equidigital number, since it uses as much as digits as its factorization.

1680102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474 (or 3462 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1680102 is about 1296.1874864386. The cubic root of 1680102 is about 118.8808448797.

1680102 divided by its sum of digits (18) gives a palindrome (93339).

Adding to 1680102 its reverse (2010861), we get a palindrome (3690963).

The spelling of 1680102 in words is "one million, six hundred eighty thousand, one hundred two".