987285490 has 8 divisors (see below), whose sum is σ = 1777113900. Its totient is φ = 394914192.

The previous prime is 987285457. The next prime is 987285491. The reversal of 987285490 is 94582789.

It can be written as a sum of positive squares in 2 ways, for example, as 972130041 + 15155449 = 31179^2 + 3893^2 .

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 (987285491) 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, 49364265 + ... + 49364284.

Almost surely, 2^987285490 is an apocalyptic number.

987285490 is a deficient number, since it is larger than the sum of its proper divisors (789828410).

987285490 is a wasteful number, since it uses less digits than its factorization.

987285490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98728556.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 987285490 is about 31421.0994397077. The cubic root of 987285490 is about 995.7437399522.

The spelling of 987285490 in words is "nine hundred eighty-seven million, two hundred eighty-five thousand, four hundred ninety".