434681 has 8 divisors (see below), whose sum is σ = 484680. Its totient is φ = 387072.

The previous prime is 434659. The next prime is 434683. The reversal of 434681 is 186434.

It can be written as a sum of positive squares in 4 ways, for example, as 55225 + 379456 = 235^2 + 616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434681 is a prime.

It is a super-2 number, since 2×434681² = 377895143522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434681.

It is not an unprimeable number, because it can be changed into a prime (434683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (60585).

2⁴³⁴⁶⁸¹ is an apocalyptic number.

It is an amenable number.

434681 is a deficient number, since it is larger than the sum of its proper divisors (49999).

434681 is a wasteful number, since it uses less digits than its factorization.

434681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195.

The product of its digits is 2304, while the sum is 26.

The square root of 434681 is about 659.3034202854. The cubic root of 434681 is about 75.7513224689.

The spelling of 434681 in words is "four hundred thirty-four thousand, six hundred eighty-one".