1084765991 has 2 divisors, whose sum is σ = 1084765992. Its totient is φ = 1084765990.

The previous prime is 1084765943. The next prime is 1084766009. The reversal of 1084765991 is 1995674801.

It is a strong prime.

It is an emirp because it is prime and its reverse (1995674801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1084765991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1084765391) 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, 542382995 + 542382996.

It is an arithmetic number, because the mean of its divisors is an integer number (542382996).

Almost surely, 2^1084765991 is an apocalyptic number.

1084765991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084765991 is an equidigital number, since it uses as much as digits as its factorization.

1084765991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 1084765991 is about 32935.7858719053. The cubic root of 1084765991 is about 1027.4925626629.

The spelling of 1084765991 in words is "one billion, eighty-four million, seven hundred sixty-five thousand, nine hundred ninety-one".