1681914 has 16 divisors (see below), whose sum is σ = 3622752. Its totient is φ = 517488.

The previous prime is 1681907. The next prime is 1681931. The reversal of 1681914 is 4191861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10704 + ... + 10859.

It is an arithmetic number, because the mean of its divisors is an integer number (226422).

2^1681914 is an apocalyptic number.

1681914 is an abundant number, since it is smaller than the sum of its proper divisors (1940838).

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

1681914 is a wasteful number, since it uses less digits than its factorization.

1681914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21581.

The product of its digits is 1728, while the sum is 30.

The square root of 1681914 is about 1296.8862710354. The cubic root of 1681914 is about 118.9235674240.

The spelling of 1681914 in words is "one million, six hundred eighty-one thousand, nine hundred fourteen".