784978848 has 36 divisors (see below), whose sum is σ = 2232284418. Its totient is φ = 261659520.

The previous prime is 784978841. The next prime is 784978861. The reversal of 784978848 is 848879487.

784978848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 697593744 + 87385104 = 26412^2 + 9348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (784978841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1362523 + ... + 1363098.

Almost surely, 2^784978848 is an apocalyptic number.

It is an amenable number.

784978848 is an abundant number, since it is smaller than the sum of its proper divisors (1447305570).

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

784978848 is a wasteful number, since it uses less digits than its factorization.

784978848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725637 (or 2725626 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 63.

The square root of 784978848 is about 28017.4739760743. The cubic root of 784978848 is about 922.4708502037.

The spelling of 784978848 in words is "seven hundred eighty-four million, nine hundred seventy-eight thousand, eight hundred forty-eight".