434478563 has 4 divisors (see below), whose sum is σ = 434539248. Its totient is φ = 434417880.

The previous prime is 434478521. The next prime is 434478581. The reversal of 434478563 is 365874434.

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

It is a cyclic number.

It is not a de Polignac number, because 434478563 - 2¹⁰ = 434477539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434478463) 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, 17903 + ... + 34488.

It is an arithmetic number, because the mean of its divisors is an integer number (108634812).

Almost surely, 2^434478563 is an apocalyptic number.

434478563 is a deficient number, since it is larger than the sum of its proper divisors (60685).

434478563 is an equidigital number, since it uses as much as digits as its factorization.

434478563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60684.

The product of its digits is 967680, while the sum is 44.

The square root of 434478563 is about 20844.1493709866. The cubic root of 434478563 is about 757.3956116069.

The spelling of 434478563 in words is "four hundred thirty-four million, four hundred seventy-eight thousand, five hundred sixty-three".