1117889415 has 24 divisors (see below), whose sum is σ = 2039659440. Its totient is φ = 564827904.

The previous prime is 1117889393. The next prime is 1117889429. The reversal of 1117889415 is 5149887111.

It is not a de Polignac number, because 1117889415 - 2⁶ = 1117889351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 652882 + ... + 654591.

It is an arithmetic number, because the mean of its divisors is an integer number (84985810).

Almost surely, 2^1117889415 is an apocalyptic number.

1117889415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1117889415 is a deficient number, since it is larger than the sum of its proper divisors (921770025).

1117889415 is a wasteful number, since it uses less digits than its factorization.

1117889415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307503 (or 1307500 counting only the distinct ones).

The product of its digits is 80640, while the sum is 45.

The square root of 1117889415 is about 33434.8532971210. The cubic root of 1117889415 is about 1037.8460768342.

The spelling of 1117889415 in words is "one billion, one hundred seventeen million, eight hundred eighty-nine thousand, four hundred fifteen".