983887 has 4 divisors (see below), whose sum is σ = 986040. Its totient is φ = 981736.

The previous prime is 983881. The next prime is 983911. The reversal of 983887 is 788389.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-983887 is a prime.

It is a Duffinian number.

983887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88 + ... + 1405.

It is an arithmetic number, because the mean of its divisors is an integer number (246510).

2⁹⁸³⁸⁸⁷ is an apocalyptic number.

983887 is a deficient number, since it is larger than the sum of its proper divisors (2153).

983887 is a wasteful number, since it uses less digits than its factorization.

983887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152.

The product of its digits is 96768, while the sum is 43.

The square root of 983887 is about 991.9107822783. The cubic root of 983887 is about 99.4599891317.

The spelling of 983887 in words is "nine hundred eighty-three thousand, eight hundred eighty-seven".