286431 has 8 divisors (see below), whose sum is σ = 384384. Its totient is φ = 189720.

The previous prime is 286427. The next prime is 286453. The reversal of 286431 is 134682.

It is a happy number.

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

It is not a de Polignac number, because 286431 - 2² = 286427 is a prime.

It is a super-4 number, since 4×286431⁴ (a number of 23 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286411) 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, 766 + ... + 1076.

It is an arithmetic number, because the mean of its divisors is an integer number (48048).

2²⁸⁶⁴³¹ is an apocalyptic number.

286431 is a deficient number, since it is larger than the sum of its proper divisors (97953).

286431 is a wasteful number, since it uses less digits than its factorization.

286431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

The product of its digits is 1152, while the sum is 24.

The square root of 286431 is about 535.1924887365. The cubic root of 286431 is about 65.9184023741.

It can be divided in two parts, 286 and 431, that added together give a palindrome (717).

The spelling of 286431 in words is "two hundred eighty-six thousand, four hundred thirty-one".