1681334 has 8 divisors (see below), whose sum is σ = 2670408. Its totient is φ = 791200.

The previous prime is 1681321. The next prime is 1681349. The reversal of 1681334 is 4331861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 6⁶ + 8⁵ + 1 + 3⁸ + 3¹³ + 4⁵ .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 24692 + ... + 24759.

It is an arithmetic number, because the mean of its divisors is an integer number (333801).

2^1681334 is an apocalyptic number.

1681334 is a deficient number, since it is larger than the sum of its proper divisors (989074).

1681334 is a wasteful number, since it uses less digits than its factorization.

1681334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49470.

The product of its digits is 1728, while the sum is 26.

The square root of 1681334 is about 1296.6626392397. The cubic root of 1681334 is about 118.9098957778.

The spelling of 1681334 in words is "one million, six hundred eighty-one thousand, three hundred thirty-four".