987055042 has 4 divisors (see below), whose sum is σ = 1480582566. Its totient is φ = 493527520.

The previous prime is 987055021. The next prime is 987055079. The reversal of 987055042 is 240550789.

987055042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 965904241 + 21150801 = 31079^2 + 4599^2 .

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 a junction number, because it is equal to n+sod(n) for n = 987054986 and 987055004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246763759 + ... + 246763762.

Almost surely, 2^987055042 is an apocalyptic number.

987055042 is a deficient number, since it is larger than the sum of its proper divisors (493527524).

987055042 is a wasteful number, since it uses less digits than its factorization.

987055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493527523.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 987055042 is about 31417.4321356791. The cubic root of 987055042 is about 995.6662598272. Note that the first 3 decimals are identical.

The spelling of 987055042 in words is "nine hundred eighty-seven million, fifty-five thousand, forty-two".