1083991079 has 4 divisors (see below), whose sum is σ = 1084058976. Its totient is φ = 1083923184.

The previous prime is 1083991067. The next prime is 1083991093. The reversal of 1083991079 is 9701993801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1083991079 - 2⁴ = 1083991063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083996079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4562 + ... + 46784.

It is an arithmetic number, because the mean of its divisors is an integer number (271014744).

Almost surely, 2^1083991079 is an apocalyptic number.

1083991079 is a deficient number, since it is larger than the sum of its proper divisors (67897).

1083991079 is an equidigital number, since it uses as much as digits as its factorization.

1083991079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67896.

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 1083991079 is about 32924.0197879907. The cubic root of 1083991079 is about 1027.2478383035.

The spelling of 1083991079 in words is "one billion, eighty-three million, nine hundred ninety-one thousand, seventy-nine".