434819561 has 4 divisors (see below), whose sum is σ = 474348624. Its totient is φ = 395290500.

The previous prime is 434819551. The next prime is 434819587. The reversal of 434819561 is 165918434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 434819561 - 2²² = 430625257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434819521) 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 3 ways as a sum of consecutive naturals, for example, 19764515 + ... + 19764536.

It is an arithmetic number, because the mean of its divisors is an integer number (118587156).

Almost surely, 2^434819561 is an apocalyptic number.

It is an amenable number.

434819561 is a deficient number, since it is larger than the sum of its proper divisors (39529063).

434819561 is a wasteful number, since it uses less digits than its factorization.

434819561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39529062.

The product of its digits is 103680, while the sum is 41.

The square root of 434819561 is about 20852.3274720114. The cubic root of 434819561 is about 757.5937056541.

The spelling of 434819561 in words is "four hundred thirty-four million, eight hundred nineteen thousand, five hundred sixty-one".