6430 has 8 divisors (see below), whose sum is σ = 11592. Its totient is φ = 2568.

The previous prime is 6427. The next prime is 6449. The reversal of 6430 is 346.

6430 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

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

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (1449).

2⁶⁴³⁰ is an apocalyptic number.

6430 is a deficient number, since it is larger than the sum of its proper divisors (5162).

6430 is a wasteful number, since it uses less digits than its factorization.

6430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 6430 is about 80.1872807869. The cubic root of 6430 is about 18.5953200543.

Adding to 6430 its reverse (346), we get a palindrome (6776).

Subtracting from 6430 its reverse (346), we obtain a square (6084 = 78²).

The spelling of 6430 in words is "six thousand, four hundred thirty".