85958 has 4 divisors (see below), whose sum is σ = 128940. Its totient is φ = 42978.

The previous prime is 85933. The next prime is 85991.

85958 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

85958 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 as a sum of consecutive naturals, namely, 21488 + ... + 21491.

It is an arithmetic number, because the mean of its divisors is an integer number (32235).

2⁸⁵⁹⁵⁸ is an apocalyptic number.

85958 is a deficient number, since it is larger than the sum of its proper divisors (42982).

85958 is a wasteful number, since it uses less digits than its factorization.

85958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42981.

The product of its digits is 14400, while the sum is 35.

The square root of 85958 is about 293.1859478215. The cubic root of 85958 is about 44.1328628649.

The spelling of 85958 in words is "eighty-five thousand, nine hundred fifty-eight".