788485405 has 4 divisors (see below), whose sum is σ = 946182492. Its totient is φ = 630788320.

The previous prime is 788485393. The next prime is 788485409. The reversal of 788485405 is 504584887.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 230250276 + 558235129 = 15174^2 + 23627^2 .

It is not a de Polignac number, because 788485405 - 2⁷ = 788485277 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (788485409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78848536 + ... + 78848545.

It is an arithmetic number, because the mean of its divisors is an integer number (236545623).

Almost surely, 2^788485405 is an apocalyptic number.

It is an amenable number.

788485405 is a deficient number, since it is larger than the sum of its proper divisors (157697087).

788485405 is a wasteful number, since it uses less digits than its factorization.

788485405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157697086.

The product of its (nonzero) digits is 1433600, while the sum is 49.

The square root of 788485405 is about 28079.9822827579. The cubic root of 788485405 is about 923.8423911916.

The spelling of 788485405 in words is "seven hundred eighty-eight million, four hundred eighty-five thousand, four hundred five".