987898812 has 12 divisors (see below), whose sum is σ = 2305097256. Its totient is φ = 329299600.

The previous prime is 987898811. The next prime is 987898861. The reversal of 987898812 is 218898789.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×987898812² = 1951888125502022688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987898811) 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, 41162439 + ... + 41162462.

It is an arithmetic number, because the mean of its divisors is an integer number (192091438).

Almost surely, 2^987898812 is an apocalyptic number.

It is an amenable number.

987898812 is an abundant number, since it is smaller than the sum of its proper divisors (1317198444).

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

987898812 is a wasteful number, since it uses less digits than its factorization.

987898812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82324908 (or 82324906 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 60.

The square root of 987898812 is about 31430.8576402236. The cubic root of 987898812 is about 995.9498894161.

The spelling of 987898812 in words is "nine hundred eighty-seven million, eight hundred ninety-eight thousand, eight hundred twelve".