808778423 has 8 divisors (see below), whose sum is σ = 829764096. Its totient is φ = 787852800.

The previous prime is 808778413. The next prime is 808778429. The reversal of 808778423 is 324877808.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 808778423 - 2⁸ = 808778167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808778429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12938 + ... + 42248.

It is an arithmetic number, because the mean of its divisors is an integer number (103720512).

Almost surely, 2^808778423 is an apocalyptic number.

808778423 is a deficient number, since it is larger than the sum of its proper divisors (20985673).

808778423 is a wasteful number, since it uses less digits than its factorization.

808778423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30025.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 808778423 is about 28439.0299236806. The cubic root of 808778423 is about 931.7009081444.

The spelling of 808778423 in words is "eight hundred eight million, seven hundred seventy-eight thousand, four hundred twenty-three".