1983361 has 2 divisors, whose sum is σ = 1983362. Its totient is φ = 1983360.

The previous prime is 1983347. The next prime is 1983379. The reversal of 1983361 is 1633891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1904400 + 78961 = 1380^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 1983361 - 2¹⁷ = 1852289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1983301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991680 + 991681.

It is an arithmetic number, because the mean of its divisors is an integer number (991681).

2^1983361 is an apocalyptic number.

It is an amenable number.

1983361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983361 is an equidigital number, since it uses as much as digits as its factorization.

1983361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 1983361 is about 1408.3185009081. The cubic root of 1983361 is about 125.6417344439.

The spelling of 1983361 in words is "one million, nine hundred eighty-three thousand, three hundred sixty-one".