27958 has 8 divisors (see below), whose sum is σ = 47952. Its totient is φ = 11976.

The previous prime is 27953. The next prime is 27961. The reversal of 27958 is 85972.

27958 is nontrivially palindromic in base 8.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27953) by changing a digit.

27958 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985 + ... + 1012.

It is an arithmetic number, because the mean of its divisors is an integer number (5994).

2²⁷⁹⁵⁸ is an apocalyptic number.

27958 is a deficient number, since it is larger than the sum of its proper divisors (19994).

27958 is a wasteful number, since it uses less digits than its factorization.

27958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its digits is 5040, while the sum is 31.

The square root of 27958 is about 167.2064592054. The cubic root of 27958 is about 30.3506991761.

The spelling of 27958 in words is "twenty-seven thousand, nine hundred fifty-eight".