979395648 has 224 divisors, whose sum is σ = 3336511488. Its totient is φ = 246067200.

The previous prime is 979395643. The next prime is 979395671. The reversal of 979395648 is 846593979.

It is a tau number, because it is divible by the number of its divisors (224).

It is a junction number, because it is equal to n+sod(n) for n = 979395591 and 979395600.

It is not an unprimeable number, because it can be changed into a prime (979395643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457236 + ... + 459372.

Almost surely, 2^979395648 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 979395648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668255744).

979395648 is an abundant number, since it is smaller than the sum of its proper divisors (2357115840).

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

979395648 is a wasteful number, since it uses less digits than its factorization.

979395648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 2191 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 60.

The square root of 979395648 is about 31295.2975381286. The cubic root of 979395648 is about 993.0841641397.

The spelling of 979395648 in words is "nine hundred seventy-nine million, three hundred ninety-five thousand, six hundred forty-eight".