1283983 has 2 divisors, whose sum is σ = 1283984. Its totient is φ = 1283982.

The previous prime is 1283981. The next prime is 1284007. The reversal of 1283983 is 3893821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1283983 - 2¹ = 1283981 is a prime.

It is a super-2 number, since 2×1283983² = 3297224688578, which contains 22 as substring.

Together with 1283981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641991 + 641992.

It is an arithmetic number, because the mean of its divisors is an integer number (641992).

2^1283983 is an apocalyptic number.

1283983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283983 is an equidigital number, since it uses as much as digits as its factorization.

1283983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 1283983 is about 1133.1297366145. The cubic root of 1283983 is about 108.6892081072.

The spelling of 1283983 in words is "one million, two hundred eighty-three thousand, nine hundred eighty-three".