1680798 has 24 divisors (see below), whose sum is σ = 3911112. Its totient is φ = 480144.

The previous prime is 1680793. The next prime is 1680803. The reversal of 1680798 is 8970861.

It is an interprime number because it is at equal distance from previous prime (1680793) and next prime (1680803).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2565 + ... + 3152.

It is an arithmetic number, because the mean of its divisors is an integer number (162963).

2^1680798 is an apocalyptic number.

1680798 is an abundant number, since it is smaller than the sum of its proper divisors (2230314).

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

1680798 is a wasteful number, since it uses less digits than its factorization.

1680798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5729 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1680798 is about 1296.4559383180. The cubic root of 1680798 is about 118.8972584953.

The spelling of 1680798 in words is "one million, six hundred eighty thousand, seven hundred ninety-eight".