431006 has 4 divisors (see below), whose sum is σ = 646512. Its totient is φ = 215502.

The previous prime is 430999. The next prime is 431017. The reversal of 431006 is 600134.

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

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 107750 + ... + 107753.

It is an arithmetic number, because the mean of its divisors is an integer number (161628).

2⁴³¹⁰⁰⁶ is an apocalyptic number.

431006 is a deficient number, since it is larger than the sum of its proper divisors (215506).

431006 is a wasteful number, since it uses less digits than its factorization.

431006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215505.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 431006 is about 656.5104721175. The cubic root of 431006 is about 75.5372387676.

The spelling of 431006 in words is "four hundred thirty-one thousand, six".