987994224 has 240 divisors, whose sum is σ = 3373593600. Its totient is φ = 263637504.

The previous prime is 987994199. The next prime is 987994283. The reversal of 987994224 is 422499789.

987994224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×987994224² = 1952265173314724352, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1512682 + ... + 1513334.

It is an arithmetic number, because the mean of its divisors is an integer number (14056640).

Almost surely, 2^987994224 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 987994224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686796800).

987994224 is an abundant number, since it is smaller than the sum of its proper divisors (2385599376).

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

987994224 is a wasteful number, since it uses less digits than its factorization.

987994224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 763 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 987994224 is about 31432.3754113494. The cubic root of 987994224 is about 995.9819515769.

The spelling of 987994224 in words is "nine hundred eighty-seven million, nine hundred ninety-four thousand, two hundred twenty-four".