1083861839 has 2 divisors, whose sum is σ = 1083861840. Its totient is φ = 1083861838.

The previous prime is 1083861833. The next prime is 1083861853. The reversal of 1083861839 is 9381683801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1083861839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1083861793 and 1083861802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1083861833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541930919 + 541930920.

It is an arithmetic number, because the mean of its divisors is an integer number (541930920).

Almost surely, 2^1083861839 is an apocalyptic number.

1083861839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083861839 is an equidigital number, since it uses as much as digits as its factorization.

1083861839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 1083861839 is about 32922.0570286852. The cubic root of 1083861839 is about 1027.2070117722.

The spelling of 1083861839 in words is "one billion, eighty-three million, eight hundred sixty-one thousand, eight hundred thirty-nine".