431087 has 8 divisors (see below), whose sum is σ = 452352. Its totient is φ = 410400.

The previous prime is 431083. The next prime is 431099. The reversal of 431087 is 780134.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 431087 - 2² = 431083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2162 + ... + 2352.

It is an arithmetic number, because the mean of its divisors is an integer number (56544).

2⁴³¹⁰⁸⁷ is an apocalyptic number.

431087 is a deficient number, since it is larger than the sum of its proper divisors (21265).

431087 is a wasteful number, since it uses less digits than its factorization.

431087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 431087 is about 656.5721590199. The cubic root of 431087 is about 75.5419704365.

The spelling of 431087 in words is "four hundred thirty-one thousand, eighty-seven".