987934 has 4 divisors (see below), whose sum is σ = 1481904. Its totient is φ = 493966.

The previous prime is 987929. The next prime is 987941. The reversal of 987934 is 439789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 439789 = 7 ⋅62827.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 246982 + ... + 246985.

It is an arithmetic number, because the mean of its divisors is an integer number (370476).

2⁹⁸⁷⁹³⁴ is an apocalyptic number.

987934 is a deficient number, since it is larger than the sum of its proper divisors (493970).

987934 is a wasteful number, since it uses less digits than its factorization.

987934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493969.

The product of its digits is 54432, while the sum is 40.

The square root of 987934 is about 993.9486908287. The cubic root of 987934 is about 99.5961714200.

The spelling of 987934 in words is "nine hundred eighty-seven thousand, nine hundred thirty-four".