1985283 has 8 divisors (see below), whose sum is σ = 2941200. Its totient is φ = 1323504.

The previous prime is 1985279. The next prime is 1985287. The reversal of 1985283 is 3825891.

It is an interprime number because it is at equal distance from previous prime (1985279) and next prime (1985287).

It is not a de Polignac number, because 1985283 - 2² = 1985279 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1985287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36738 + ... + 36791.

It is an arithmetic number, because the mean of its divisors is an integer number (367650).

2^1985283 is an apocalyptic number.

1985283 is a deficient number, since it is larger than the sum of its proper divisors (955917).

1985283 is an equidigital number, since it uses as much as digits as its factorization.

1985283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73538 (or 73532 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1985283 is about 1409.0007097230. Note that the first 3 decimals coincide. The cubic root of 1985283 is about 125.6823062227.

The spelling of 1985283 in words is "one million, nine hundred eighty-five thousand, two hundred eighty-three".