430655 has 4 divisors (see below), whose sum is σ = 516792. Its totient is φ = 344520.

The previous prime is 430649. The next prime is 430663. The reversal of 430655 is 556034.

430655 = 105² + 106² + ... + 134².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556034 = 2 ⋅278017.

It is not a de Polignac number, because 430655 - 2¹⁰ = 429631 is a prime.

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 430655.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43061 + ... + 43070.

It is an arithmetic number, because the mean of its divisors is an integer number (129198).

2⁴³⁰⁶⁵⁵ is an apocalyptic number.

430655 is a deficient number, since it is larger than the sum of its proper divisors (86137).

430655 is an equidigital number, since it uses as much as digits as its factorization.

430655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86136.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 430655 is about 656.2430952018. The cubic root of 430655 is about 75.5167280157.

Adding to 430655 its reverse (556034), we get a palindrome (986689).

The spelling of 430655 in words is "four hundred thirty thousand, six hundred fifty-five".