788409984 has 64 divisors (see below), whose sum is σ = 2097152640. Its totient is φ = 262434816.

The previous prime is 788409961. The next prime is 788409989. The reversal of 788409984 is 489904887.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (788409989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497257 + ... + 498839.

It is an arithmetic number, because the mean of its divisors is an integer number (32768010).

Almost surely, 2^788409984 is an apocalyptic number.

It is an amenable number.

788409984 is an abundant number, since it is smaller than the sum of its proper divisors (1308742656).

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

788409984 is a wasteful number, since it uses less digits than its factorization.

788409984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897 (or 2885 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 57.

The square root of 788409984 is about 28078.6392832701. The cubic root of 788409984 is about 923.8129341514.

The spelling of 788409984 in words is "seven hundred eighty-eight million, four hundred nine thousand, nine hundred eighty-four".