430631 has 4 divisors (see below), whose sum is σ = 432264. Its totient is φ = 429000.

The previous prime is 430603. The next prime is 430649. The reversal of 430631 is 136034.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-430631 is a prime.

It is a super-2 number, since 2×430631² = 370886116322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430601) 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, 320 + ... + 981.

It is an arithmetic number, because the mean of its divisors is an integer number (108066).

2⁴³⁰⁶³¹ is an apocalyptic number.

430631 is a deficient number, since it is larger than the sum of its proper divisors (1633).

430631 is a wasteful number, since it uses less digits than its factorization.

430631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 430631 is about 656.2248090403. The cubic root of 430631 is about 75.5153251641.

Adding to 430631 its reverse (136034), we get a palindrome (566665).

The spelling of 430631 in words is "four hundred thirty thousand, six hundred thirty-one".