1089447071 has 2 divisors, whose sum is σ = 1089447072. Its totient is φ = 1089447070.

The previous prime is 1089447019. The next prime is 1089447077. The reversal of 1089447071 is 1707449801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1089447071 - 2²² = 1085252767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089447077) 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, 544723535 + 544723536.

It is an arithmetic number, because the mean of its divisors is an integer number (544723536).

Almost surely, 2^1089447071 is an apocalyptic number.

1089447071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089447071 is an equidigital number, since it uses as much as digits as its factorization.

1089447071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 1089447071 is about 33006.7731079547. The cubic root of 1089447071 is about 1028.9684179592.

The spelling of 1089447071 in words is "one billion, eighty-nine million, four hundred forty-seven thousand, seventy-one".