93986 has 4 divisors (see below), whose sum is σ = 140982. Its totient is φ = 46992.

The previous prime is 93983. The next prime is 93997. The reversal of 93986 is 68939.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68939 = 13 ⋅5303.

It can be written as a sum of positive squares in only one way, i.e., 93025 + 961 = 305^2 + 31^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (93983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23495 + ... + 23498.

2⁹³⁹⁸⁶ is an apocalyptic number.

93986 is a deficient number, since it is larger than the sum of its proper divisors (46996).

93986 is a wasteful number, since it uses less digits than its factorization.

93986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46995.

The product of its digits is 11664, while the sum is 35.

The square root of 93986 is about 306.5713620024. The cubic root of 93986 is about 45.4661020312.

The spelling of 93986 in words is "ninety-three thousand, nine hundred eighty-six".