1986084 has 36 divisors (see below), whose sum is σ = 5141136. Its totient is φ = 646128.

The previous prime is 1986071. The next prime is 1986097. The reversal of 1986084 is 4806891.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1986071) and next prime (1986097).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 907 + ... + 2189.

2^1986084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1986084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2570568).

1986084 is an abundant number, since it is smaller than the sum of its proper divisors (3155052).

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

1986084 is a wasteful number, since it uses less digits than its factorization.

1986084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1986084 is about 1409.2849250595. The cubic root of 1986084 is about 125.6992069183.

The spelling of 1986084 in words is "one million, nine hundred eighty-six thousand, eighty-four".