286648 has 8 divisors (see below), whose sum is σ = 537480. Its totient is φ = 143320.

The previous prime is 286633. The next prime is 286651. The reversal of 286648 is 846682.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2¹⁸ + 8² + 6³ + 6⁵ + 4⁷ + 8² .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 286648.

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, 17908 + ... + 17923.

It is an arithmetic number, because the mean of its divisors is an integer number (67185).

2²⁸⁶⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

286648 is a deficient number, since it is larger than the sum of its proper divisors (250832).

286648 is a wasteful number, since it uses less digits than its factorization.

286648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35837 (or 35833 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 286648 is about 535.3951811513. The cubic root of 286648 is about 65.9350447563.

Adding to 286648 its sum of digits (34), we get a palindrome (286682).

The spelling of 286648 in words is "two hundred eighty-six thousand, six hundred forty-eight".