981059648 has 28 divisors (see below), whose sum is σ = 1948072812. Its totient is φ = 490206720.

The previous prime is 981059621. The next prime is 981059659. The reversal of 981059648 is 846950189.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206439424 + 774620224 = 14368^2 + 27832^2 .

It is a junction number, because it is equal to n+sod(n) for n = 981059596 and 981059605.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 114986 + ... + 123222.

It is an arithmetic number, because the mean of its divisors is an integer number (69574029).

Almost surely, 2^981059648 is an apocalyptic number.

It is an amenable number.

981059648 is a deficient number, since it is larger than the sum of its proper divisors (967013164).

981059648 is a wasteful number, since it uses less digits than its factorization.

981059648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110 (or 10100 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 981059648 is about 31321.8717192954. The cubic root of 981059648 is about 993.6462648834.

The spelling of 981059648 in words is "nine hundred eighty-one million, fifty-nine thousand, six hundred forty-eight".