987654328 has 8 divisors (see below), whose sum is σ = 1851851880. Its totient is φ = 493827160.

The previous prime is 987654323. The next prime is 987654337. The reversal of 987654328 is 823456789.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×987654328² = 1950922143234263168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987654323) by changing a digit.

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 as a sum of consecutive naturals, namely, 61728388 + ... + 61728403.

It is an arithmetic number, because the mean of its divisors is an integer number (231481485).

Almost surely, 2^987654328 is an apocalyptic number.

It is an amenable number.

987654328 is a deficient number, since it is larger than the sum of its proper divisors (864197552).

987654328 is a wasteful number, since it uses less digits than its factorization.

987654328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123456797 (or 123456793 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 987654328 is about 31426.9681643012. The cubic root of 987654328 is about 995.8677238140.

The spelling of 987654328 in words is "nine hundred eighty-seven million, six hundred fifty-four thousand, three hundred twenty-eight".