987490172 has 12 divisors (see below), whose sum is σ = 1729759416. Its totient is φ = 493273200.

The previous prime is 987490159. The next prime is 987490181. The reversal of 987490172 is 271094789.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113243 + ... + 121650.

It is an arithmetic number, because the mean of its divisors is an integer number (144146618).

Almost surely, 2^987490172 is an apocalyptic number.

It is an amenable number.

987490172 is a deficient number, since it is larger than the sum of its proper divisors (742269244).

987490172 is a wasteful number, since it uses less digits than its factorization.

987490172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235948 (or 235946 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 987490172 is about 31424.3563498125. The cubic root of 987490172 is about 995.8125470464.

The spelling of 987490172 in words is "nine hundred eighty-seven million, four hundred ninety thousand, one hundred seventy-two".