434385887 has 16 divisors (see below), whose sum is σ = 496665792. Its totient is φ = 376358400.

The previous prime is 434385877. The next prime is 434385901. The reversal of 434385887 is 788583434.

It is a cyclic number.

It is not a de Polignac number, because 434385887 - 2⁶ = 434385823 is a prime.

It is a Smith number, since the sum of its digits (50) 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 (434385877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85262 + ... + 90212.

It is an arithmetic number, because the mean of its divisors is an integer number (31041612).

Almost surely, 2^434385887 is an apocalyptic number.

434385887 is a deficient number, since it is larger than the sum of its proper divisors (62279905).

434385887 is a wasteful number, since it uses less digits than its factorization.

434385887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378.

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

The square root of 434385887 is about 20841.9261825773. The cubic root of 434385887 is about 757.3417559486.

The spelling of 434385887 in words is "four hundred thirty-four million, three hundred eighty-five thousand, eight hundred eighty-seven".