979782648 has 128 divisors (see below), whose sum is σ = 2700902400. Its totient is φ = 294368256.

The previous prime is 979782631. The next prime is 979782673. The reversal of 979782648 is 846287979.

It is a junction number, because it is equal to n+sod(n) for n = 979782591 and 979782600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3130140 + ... + 3130452.

It is an arithmetic number, because the mean of its divisors is an integer number (21100800).

Almost surely, 2^979782648 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 979782648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1350451200).

979782648 is an abundant number, since it is smaller than the sum of its proper divisors (1721119752).

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

979782648 is a wasteful number, since it uses less digits than its factorization.

979782648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The square root of 979782648 is about 31301.4799650112. The cubic root of 979782648 is about 993.2149498825.

The spelling of 979782648 in words is "nine hundred seventy-nine million, seven hundred eighty-two thousand, six hundred forty-eight".