1992000687 has 16 divisors (see below), whose sum is σ = 2832773472. Its totient is φ = 1240755200.

The previous prime is 1992000649. The next prime is 1992000701. The reversal of 1992000687 is 7860002991.

It is not a de Polignac number, because 1992000687 - 2⁷ = 1992000559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992000187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135564 + ... + 149537.

It is an arithmetic number, because the mean of its divisors is an integer number (177048342).

Almost surely, 2^1992000687 is an apocalyptic number.

1992000687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1992000687 is a deficient number, since it is larger than the sum of its proper divisors (840772785).

1992000687 is a wasteful number, since it uses less digits than its factorization.

1992000687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285258.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1992000687 is about 44631.8349051437. The cubic root of 1992000687 is about 1258.2390549582.

The spelling of 1992000687 in words is "one billion, nine hundred ninety-two million, six hundred eighty-seven", and thus it is an aban number.