987445473 has 8 divisors (see below), whose sum is σ = 1504678848. Its totient is φ = 564254544.

The previous prime is 987445457. The next prime is 987445519. The reversal of 987445473 is 374544789.

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

It is not a de Polignac number, because 987445473 - 2⁴ = 987445457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (987445073) 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 in 7 ways as a sum of consecutive naturals, for example, 23510586 + ... + 23510627.

It is an arithmetic number, because the mean of its divisors is an integer number (188084856).

Almost surely, 2^987445473 is an apocalyptic number.

It is an amenable number.

987445473 is a deficient number, since it is larger than the sum of its proper divisors (517233375).

987445473 is a wasteful number, since it uses less digits than its factorization.

987445473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47021223.

The product of its digits is 3386880, while the sum is 51.

The square root of 987445473 is about 31423.6451259239. The cubic root of 987445473 is about 995.7975215816.

The spelling of 987445473 in words is "nine hundred eighty-seven million, four hundred forty-five thousand, four hundred seventy-three".