1083791943 has 12 divisors (see below), whose sum is σ = 1685898760. Its totient is φ = 666948816.

The previous prime is 1083791911. The next prime is 1083791983. The reversal of 1083791943 is 3491973801.

It is not a de Polignac number, because 1083791943 - 2⁵ = 1083791911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083791983) 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 in 11 ways as a sum of consecutive naturals, for example, 4631473 + ... + 4631706.

Almost surely, 2^1083791943 is an apocalyptic number.

1083791943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1083791943 is a deficient number, since it is larger than the sum of its proper divisors (602106817).

1083791943 is a wasteful number, since it uses less digits than its factorization.

1083791943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9263198 (or 9263195 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1083791943 is about 32920.9954740132. The cubic root of 1083791943 is about 1027.1849304816.

The spelling of 1083791943 in words is "one billion, eighty-three million, seven hundred ninety-one thousand, nine hundred forty-three".