117587447 has 12 divisors (see below), whose sum is σ = 124623576. Its totient is φ = 110931120.

The previous prime is 117587429. The next prime is 117587473. The reversal of 117587447 is 744785711.

It is not a de Polignac number, because 117587447 - 2¹⁰ = 117586423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117587398 and 117587407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117587497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110297 + ... + 111357.

It is an arithmetic number, because the mean of its divisors is an integer number (10385298).

Almost surely, 2^117587447 is an apocalyptic number.

117587447 is a deficient number, since it is larger than the sum of its proper divisors (7036129).

117587447 is a wasteful number, since it uses less digits than its factorization.

117587447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1387 counting only the distinct ones).

The product of its digits is 219520, while the sum is 44.

The square root of 117587447 is about 10843.7745734592. The cubic root of 117587447 is about 489.9145304209.

The spelling of 117587447 in words is "one hundred seventeen million, five hundred eighty-seven thousand, four hundred forty-seven".