190986 has 16 divisors (see below), whose sum is σ = 386400. Its totient is φ = 62928.

The previous prime is 190979. The next prime is 190997. The reversal of 190986 is 689091.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

190986 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 7 ways as a sum of consecutive naturals, for example, 720 + ... + 948.

It is an arithmetic number, because the mean of its divisors is an integer number (24150).

2¹⁹⁰⁹⁸⁶ is an apocalyptic number.

190986 is an abundant number, since it is smaller than the sum of its proper divisors (195414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190986 is a wasteful number, since it uses less digits than its factorization.

190986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 190986 is about 437.0194503681. The cubic root of 190986 is about 57.5882450935.

It can be divided in two parts, 190 and 986, that added together give a triangular number (1176 = T₄₈).

The spelling of 190986 in words is "one hundred ninety thousand, nine hundred eighty-six".