163958 has 8 divisors (see below), whose sum is σ = 249528. Its totient is φ = 80784.

The previous prime is 163927. The next prime is 163973. The reversal of 163958 is 859361.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416 + ... + 707.

It is an arithmetic number, because the mean of its divisors is an integer number (31191).

2¹⁶³⁹⁵⁸ is an apocalyptic number.

163958 is a deficient number, since it is larger than the sum of its proper divisors (85570).

163958 is a wasteful number, since it uses less digits than its factorization.

163958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its digits is 6480, while the sum is 32.

The square root of 163958 is about 404.9172755020. The cubic root of 163958 is about 54.7323636752.

The spelling of 163958 in words is "one hundred sixty-three thousand, nine hundred fifty-eight".