1680748 has 12 divisors (see below), whose sum is σ = 3069360. Its totient is φ = 803792.

The previous prime is 1680743. The next prime is 1680761. The reversal of 1680748 is 8470861.

1680748 = T₂₄₇ + T₂₄₈ + ... + T₂₉₂.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1680743) 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 3 ways as a sum of consecutive naturals, for example, 9043 + ... + 9226.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

2^1680748 is an apocalyptic number.

It is an amenable number.

1680748 is a deficient number, since it is larger than the sum of its proper divisors (1388612).

1680748 is a wasteful number, since it uses less digits than its factorization.

1680748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18296 (or 18294 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 1680748 is about 1296.4366548351. The cubic root of 1680748 is about 118.8960795074.

The spelling of 1680748 in words is "one million, six hundred eighty thousand, seven hundred forty-eight".