1117391686 has 16 divisors (see below), whose sum is σ = 1722842784. Its totient is φ = 543297664.

The previous prime is 1117391651. The next prime is 1117391741. The reversal of 1117391686 is 6861937111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34666 + ... + 58621.

It is an arithmetic number, because the mean of its divisors is an integer number (107677674).

Almost surely, 2^1117391686 is an apocalyptic number.

1117391686 is a deficient number, since it is larger than the sum of its proper divisors (605451098).

1117391686 is a wasteful number, since it uses less digits than its factorization.

1117391686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93455.

The product of its digits is 54432, while the sum is 43.

The square root of 1117391686 is about 33427.4092026289. The cubic root of 1117391686 is about 1037.6920237984.

The spelling of 1117391686 in words is "one billion, one hundred seventeen million, three hundred ninety-one thousand, six hundred eighty-six".