1986364 has 12 divisors (see below), whose sum is σ = 3499384. Its totient is φ = 986544.

The previous prime is 1986359. The next prime is 1986373. The reversal of 1986364 is 4636891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954 + ... + 2209.

2^1986364 is an apocalyptic number.

It is an amenable number.

1986364 is a deficient number, since it is larger than the sum of its proper divisors (1513020).

1986364 is a wasteful number, since it uses less digits than its factorization.

1986364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324 (or 3322 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 1986364 is about 1409.3842627190. The cubic root of 1986364 is about 125.7051137051.

The spelling of 1986364 in words is "one million, nine hundred eighty-six thousand, three hundred sixty-four".