1117889471 has 2 divisors, whose sum is σ = 1117889472. Its totient is φ = 1117889470.

The previous prime is 1117889459. The next prime is 1117889527. The reversal of 1117889471 is 1749887111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117889471 is a prime.

It is a super-3 number, since 3×1117889471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117889771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558944735 + 558944736.

It is an arithmetic number, because the mean of its divisors is an integer number (558944736).

Almost surely, 2^1117889471 is an apocalyptic number.

1117889471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117889471 is an equidigital number, since it uses as much as digits as its factorization.

1117889471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 47.

The square root of 1117889471 is about 33434.8541345704. The cubic root of 1117889471 is about 1037.8460941643.

The spelling of 1117889471 in words is "one billion, one hundred seventeen million, eight hundred eighty-nine thousand, four hundred seventy-one".