1682385 has 16 divisors (see below), whose sum is σ = 2738880. Its totient is φ = 881600.

The previous prime is 1682383. The next prime is 1682389. The reversal of 1682385 is 5832861.

It is a happy number.

It is not a de Polignac number, because 1682385 - 2¹ = 1682383 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1682385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1682383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66 + ... + 1835.

It is an arithmetic number, because the mean of its divisors is an integer number (171180).

2^1682385 is an apocalyptic number.

1682385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1682385 is a deficient number, since it is larger than the sum of its proper divisors (1056495).

1682385 is a wasteful number, since it uses less digits than its factorization.

1682385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968.

The product of its digits is 11520, while the sum is 33.

The square root of 1682385 is about 1297.0678471075. The cubic root of 1682385 is about 118.9346674312.

The spelling of 1682385 in words is "one million, six hundred eighty-two thousand, three hundred eighty-five".