434417681 has 4 divisors (see below), whose sum is σ = 434460852. Its totient is φ = 434374512.

The previous prime is 434417639. The next prime is 434417693. The reversal of 434417681 is 186714434.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 283619281 + 150798400 = 16841^2 + 12280^2 .

It is a cyclic number.

It is not a de Polignac number, because 434417681 - 2⁶ = 434417617 is a prime.

It is a super-2 number, since 2×434417681² = 377437443130835522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434017681) 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, 2375 + ... + 29571.

It is an arithmetic number, because the mean of its divisors is an integer number (108615213).

Almost surely, 2^434417681 is an apocalyptic number.

It is an amenable number.

434417681 is a deficient number, since it is larger than the sum of its proper divisors (43171).

434417681 is a wasteful number, since it uses less digits than its factorization.

434417681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43170.

The product of its digits is 64512, while the sum is 38.

The square root of 434417681 is about 20842.6889100231. The cubic root of 434417681 is about 757.3602328659.

The spelling of 434417681 in words is "four hundred thirty-four million, four hundred seventeen thousand, six hundred eighty-one".