102986 has 16 divisors (see below), whose sum is σ = 176904. Its totient is φ = 44544.

The previous prime is 102983. The next prime is 103001. The reversal of 102986 is 689201.

It can be written as a sum of positive squares in 4 ways, for example, as 70225 + 32761 = 265^2 + 181^2 .

It is a super-2 number, since 2×102986² = 21212232392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102983) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 326 + ... + 558.

2¹⁰²⁹⁸⁶ is an apocalyptic number.

102986 is a deficient number, since it is larger than the sum of its proper divisors (73918).

102986 is a wasteful number, since it uses less digits than its factorization.

102986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 102986 is about 320.9143187831. The cubic root of 102986 is about 46.8733575721.

The spelling of 102986 in words is "one hundred two thousand, nine hundred eighty-six".