117493587 has 54 divisors (see below), whose sum is σ = 189818772. Its totient is φ = 69981408.

The previous prime is 117493583. The next prime is 117493589. The reversal of 117493587 is 785394711.

It is not a de Polignac number, because 117493587 - 2² = 117493583 is a prime.

It is a super-2 number, since 2×117493587² = 27609485972253138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117493583) by changing a digit.

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 53 ways as a sum of consecutive naturals, for example, 2732388 + ... + 2732430.

Almost surely, 2^117493587 is an apocalyptic number.

117493587 is a deficient number, since it is larger than the sum of its proper divisors (72325185).

117493587 is a wasteful number, since it uses less digits than its factorization.

117493587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 94 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 117493587 is about 10839.4458806712. The cubic root of 117493587 is about 489.7841434358.

The spelling of 117493587 in words is "one hundred seventeen million, four hundred ninety-three thousand, five hundred eighty-seven".