986847840 has 384 divisors, whose sum is σ = 3969907200. Its totient is φ = 226437120.

The previous prime is 986847817. The next prime is 986847847. The reversal of 986847840 is 48748689.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986847847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 902334 + ... + 903426.

It is an arithmetic number, because the mean of its divisors is an integer number (10338300).

Almost surely, 2^986847840 is an apocalyptic number.

986847840 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 986847840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1984953600).

986847840 is an abundant number, since it is smaller than the sum of its proper divisors (2983059360).

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

986847840 is a wasteful number, since it uses less digits than its factorization.

986847840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 986847840 is about 31414.1343983883. The cubic root of 986847840 is about 995.5965850644.

The spelling of 986847840 in words is "nine hundred eighty-six million, eight hundred forty-seven thousand, eight hundred forty".