1680327 has 18 divisors (see below), whose sum is σ = 2669576. Its totient is φ = 1017720.

The previous prime is 1680323. The next prime is 1680359. The reversal of 1680327 is 7230861.

It is not a de Polignac number, because 1680327 - 2² = 1680323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1680327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 318 + ... + 1860.

2^1680327 is an apocalyptic number.

1680327 is a deficient number, since it is larger than the sum of its proper divisors (989249).

1680327 is a wasteful number, since it uses less digits than its factorization.

1680327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1680327 is about 1296.2742765326. The cubic root of 1680327 is about 118.8861515012.

The spelling of 1680327 in words is "one million, six hundred eighty thousand, three hundred twenty-seven".