1985675 has 6 divisors (see below), whose sum is σ = 2462268. Its totient is φ = 1588520.

The previous prime is 1985663. The next prime is 1985677. The reversal of 1985675 is 5765891.

1985675 = T₃₈₆ + T₃₈₇ + ... + T₄₁₀.

It is not a de Polignac number, because 1985675 - 2⁸ = 1985419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1985677) 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 5 ways as a sum of consecutive naturals, for example, 39689 + ... + 39738.

It is an arithmetic number, because the mean of its divisors is an integer number (410378).

2^1985675 is an apocalyptic number.

1985675 is a deficient number, since it is larger than the sum of its proper divisors (476593).

1985675 is an equidigital number, since it uses as much as digits as its factorization.

1985675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79437 (or 79432 counting only the distinct ones).

The product of its digits is 75600, while the sum is 41.

The square root of 1985675 is about 1409.1398085357. The cubic root of 1985675 is about 125.6905777927.

The spelling of 1985675 in words is "one million, nine hundred eighty-five thousand, six hundred seventy-five".