1868983 has 2 divisors, whose sum is σ = 1868984. Its totient is φ = 1868982.

The previous prime is 1868947. The next prime is 1868987. The reversal of 1868983 is 3898681.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1868983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1868987) 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 as a sum of consecutive naturals, namely, 934491 + 934492.

It is an arithmetic number, because the mean of its divisors is an integer number (934492).

2^1868983 is an apocalyptic number.

1868983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868983 is an equidigital number, since it uses as much as digits as its factorization.

1868983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 43.

The square root of 1868983 is about 1367.1075305184. The cubic root of 1868983 is about 123.1785583855.

The spelling of 1868983 in words is "one million, eight hundred sixty-eight thousand, nine hundred eighty-three".