987675631 has 8 divisors (see below), whose sum is σ = 1009078560. Its totient is φ = 966501888.

The previous prime is 987675589. The next prime is 987675653. The reversal of 987675631 is 136576789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987675631 is a prime.

It is a super-2 number, since 2×987675631² = 1951006304142496322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987675331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48571 + ... + 65836.

It is an arithmetic number, because the mean of its divisors is an integer number (126134820).

Almost surely, 2^987675631 is an apocalyptic number.

987675631 is a deficient number, since it is larger than the sum of its proper divisors (21402929).

987675631 is a wasteful number, since it uses less digits than its factorization.

987675631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114593.

The product of its digits is 1905120, while the sum is 52.

The square root of 987675631 is about 31427.3070911270. The cubic root of 987675631 is about 995.8748838149.

The spelling of 987675631 in words is "nine hundred eighty-seven million, six hundred seventy-five thousand, six hundred thirty-one".