430247 has 4 divisors (see below), whose sum is σ = 434376. Its totient is φ = 426120.

The previous prime is 430193. The next prime is 430259. The reversal of 430247 is 742034.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 430247 - 2⁸ = 429991 is a prime.

It is a super-2 number, since 2×430247² = 370224962018, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 430247.

It is not an unprimeable number, because it can be changed into a prime (430267) 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, 1904 + ... + 2117.

It is an arithmetic number, because the mean of its divisors is an integer number (108594).

2⁴³⁰²⁴⁷ is an apocalyptic number.

430247 is a deficient number, since it is larger than the sum of its proper divisors (4129).

430247 is a wasteful number, since it uses less digits than its factorization.

430247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 430247 is about 655.9321611264. The cubic root of 430247 is about 75.4928724467.

The spelling of 430247 in words is "four hundred thirty thousand, two hundred forty-seven".