1986329676 has 24 divisors (see below), whose sum is σ = 4648780864. Its totient is φ = 660108240.

The previous prime is 1986329669. The next prime is 1986329687. The reversal of 1986329676 is 6769236891.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246070 + ... + 254013.

Almost surely, 2^1986329676 is an apocalyptic number.

It is an amenable number.

1986329676 is an abundant number, since it is smaller than the sum of its proper divisors (2662451188).

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

1986329676 is a wasteful number, since it uses less digits than its factorization.

1986329676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500421 (or 500419 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 57.

The square root of 1986329676 is about 44568.2586152971. The cubic root of 1986329676 is about 1257.0438964727.

The spelling of 1986329676 in words is "one billion, nine hundred eighty-six million, three hundred twenty-nine thousand, six hundred seventy-six".