788409064 has 16 divisors (see below), whose sum is σ = 1488190500. Its totient is φ = 391558272.

The previous prime is 788409059. The next prime is 788409073. The reversal of 788409064 is 460904887.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 582256900 + 206152164 = 24130^2 + 14358^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329517 + ... + 331900.

Almost surely, 2^788409064 is an apocalyptic number.

It is an amenable number.

788409064 is a deficient number, since it is larger than the sum of its proper divisors (699781436).

788409064 is a wasteful number, since it uses less digits than its factorization.

788409064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661572 (or 661568 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 788409064 is about 28078.6229007051. The cubic root of 788409064 is about 923.8125748171.

The spelling of 788409064 in words is "seven hundred eighty-eight million, four hundred nine thousand, sixty-four".