1089394783 has 2 divisors, whose sum is σ = 1089394784. Its totient is φ = 1089394782.

The previous prime is 1089394771. The next prime is 1089394829. The reversal of 1089394783 is 3874939801.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089394783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1089394783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089394763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544697391 + 544697392.

It is an arithmetic number, because the mean of its divisors is an integer number (544697392).

Almost surely, 2^1089394783 is an apocalyptic number.

1089394783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089394783 is an equidigital number, since it uses as much as digits as its factorization.

1089394783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 1089394783 is about 33005.9810185972. The cubic root of 1089394783 is about 1028.9519559199.

The spelling of 1089394783 in words is "one billion, eighty-nine million, three hundred ninety-four thousand, seven hundred eighty-three".