1985361 has 8 divisors (see below), whose sum is σ = 3025344. Its totient is φ = 1134480.

The previous prime is 1985317. The next prime is 1985363. The reversal of 1985361 is 1635891.

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

It is not a de Polignac number, because 1985361 - 2⁹ = 1984849 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.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1985363) 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 7 ways as a sum of consecutive naturals, for example, 47250 + ... + 47291.

It is an arithmetic number, because the mean of its divisors is an integer number (378168).

2^1985361 is an apocalyptic number.

It is an amenable number.

1985361 is a deficient number, since it is larger than the sum of its proper divisors (1039983).

1985361 is an equidigital number, since it uses as much as digits as its factorization.

1985361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94551.

The product of its digits is 6480, while the sum is 33.

The square root of 1985361 is about 1409.0283886423. The cubic root of 1985361 is about 125.6839521831.

It can be divided in two parts, 1985 and 361, that added together give a triangular number (2346 = T₆₈).

The spelling of 1985361 in words is "one million, nine hundred eighty-five thousand, three hundred sixty-one".