788434385 has 8 divisors (see below), whose sum is σ = 950925096. Its totient is φ = 627544960.

The previous prime is 788434379. The next prime is 788434391. The reversal of 788434385 is 583434887.

It is an interprime number because it is at equal distance from previous prime (788434379) and next prime (788434391).

It can be written as a sum of positive squares in 4 ways, for example, as 195804049 + 592630336 = 13993^2 + 24344^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 788434385 - 2²² = 784240081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399236 + ... + 401205.

It is an arithmetic number, because the mean of its divisors is an integer number (118865637).

Almost surely, 2^788434385 is an apocalyptic number.

It is an amenable number.

788434385 is a deficient number, since it is larger than the sum of its proper divisors (162490711).

788434385 is a wasteful number, since it uses less digits than its factorization.

788434385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800643.

The product of its digits is 2580480, while the sum is 50.

The square root of 788434385 is about 28079.0737917047. The cubic root of 788434385 is about 923.8224646103.

The spelling of 788434385 in words is "seven hundred eighty-eight million, four hundred thirty-four thousand, three hundred eighty-five".