434657 has 4 divisors (see below), whose sum is σ = 439236. Its totient is φ = 430080.

The previous prime is 434647. The next prime is 434659. The reversal of 434657 is 756434.

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

It can be written as a sum of positive squares in 2 ways, for example, as 271441 + 163216 = 521^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 434657 - 2⁶ = 434593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434659) 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, 2144 + ... + 2337.

It is an arithmetic number, because the mean of its divisors is an integer number (109809).

2⁴³⁴⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

434657 is a deficient number, since it is larger than the sum of its proper divisors (4579).

434657 is an equidigital number, since it uses as much as digits as its factorization.

434657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578.

The product of its digits is 10080, while the sum is 29.

The square root of 434657 is about 659.2852190062. The cubic root of 434657 is about 75.7499282931.

The spelling of 434657 in words is "four hundred thirty-four thousand, six hundred fifty-seven".