987399242 has 8 divisors (see below), whose sum is σ = 1521128676. Its totient is φ = 480356352.

The previous prime is 987399229. The next prime is 987399247. The reversal of 987399242 is 242993789.

It can be written as a sum of positive squares in 2 ways, for example, as 949194481 + 38204761 = 30809^2 + 6181^2 .

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

It is not an unprimeable number, because it can be changed into a prime (987399247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6671543 + ... + 6671690.

Almost surely, 2^987399242 is an apocalyptic number.

987399242 is a deficient number, since it is larger than the sum of its proper divisors (533729434).

987399242 is a wasteful number, since it uses less digits than its factorization.

987399242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13343272.

The product of its digits is 1959552, while the sum is 53.

The square root of 987399242 is about 31422.9095088281. The cubic root of 987399242 is about 995.7819806614.

The spelling of 987399242 in words is "nine hundred eighty-seven million, three hundred ninety-nine thousand, two hundred forty-two".