986840647 has 12 divisors (see below), whose sum is σ = 1071847560. Its totient is φ = 903152592.

The previous prime is 986840629. The next prime is 986840671. The reversal of 986840647 is 746048689.

It is a happy number.

It is not a de Polignac number, because 986840647 - 2¹¹ = 986838599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 986840594 and 986840603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986840627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1335004 + ... + 1335742.

It is an arithmetic number, because the mean of its divisors is an integer number (89320630).

Almost surely, 2^986840647 is an apocalyptic number.

986840647 is a deficient number, since it is larger than the sum of its proper divisors (85006913).

986840647 is an equidigital number, since it uses as much as digits as its factorization.

986840647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 986840647 is about 31414.0199114981. The cubic root of 986840647 is about 995.5941661357.

The spelling of 986840647 in words is "nine hundred eighty-six million, eight hundred forty thousand, six hundred forty-seven".