117617637 has 8 divisors (see below), whose sum is σ = 156898720. Its totient is φ = 78374160.

The previous prime is 117617603. The next prime is 117617639. The reversal of 117617637 is 736716711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117617637 - 2⁶ = 117617573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117617595 and 117617604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117617639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 15372.

It is an arithmetic number, because the mean of its divisors is an integer number (19612340).

Almost surely, 2^117617637 is an apocalyptic number.

It is an amenable number.

117617637 is a deficient number, since it is larger than the sum of its proper divisors (39281083).

117617637 is a wasteful number, since it uses less digits than its factorization.

117617637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18803.

The product of its digits is 37044, while the sum is 39.

The square root of 117617637 is about 10845.1665270756. The cubic root of 117617637 is about 489.9564545504.

The spelling of 117617637 in words is "one hundred seventeen million, six hundred seventeen thousand, six hundred thirty-seven".