987517412 has 48 divisors (see below), whose sum is σ = 2018459520. Its totient is φ = 413966592.

The previous prime is 987517411. The next prime is 987517439. The reversal of 987517412 is 214715789.

It is not an unprimeable number, because it can be changed into a prime (987517411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606143 + ... + 607769.

It is an arithmetic number, because the mean of its divisors is an integer number (42051240).

Almost surely, 2^987517412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987517412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009229760).

987517412 is an abundant number, since it is smaller than the sum of its proper divisors (1030942108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987517412 is a wasteful number, since it uses less digits than its factorization.

987517412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100 (or 2098 counting only the distinct ones).

The product of its digits is 141120, while the sum is 44.

The square root of 987517412 is about 31424.7897685887. The cubic root of 987517412 is about 995.8217034867.

The spelling of 987517412 in words is "nine hundred eighty-seven million, five hundred seventeen thousand, four hundred twelve".