117958 has 4 divisors (see below), whose sum is σ = 176940. Its totient is φ = 58978.

The previous prime is 117937. The next prime is 117959. The reversal of 117958 is 859711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 859711 = 97 ⋅8863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29488 + ... + 29491.

It is an arithmetic number, because the mean of its divisors is an integer number (44235).

2¹¹⁷⁹⁵⁸ is an apocalyptic number.

117958 is a deficient number, since it is larger than the sum of its proper divisors (58982).

117958 is an equidigital number, since it uses as much as digits as its factorization.

117958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58981.

The product of its digits is 2520, while the sum is 31.

The square root of 117958 is about 343.4501419420. The cubic root of 117958 is about 49.0428612896.

The spelling of 117958 in words is "one hundred seventeen thousand, nine hundred fifty-eight".