286398 has 24 divisors (see below), whose sum is σ = 709488. Its totient is φ = 81792.

The previous prime is 286397. The next prime is 286411. The reversal of 286398 is 893682.

It is a nialpdrome in base 14.

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 286398.

It is not an unprimeable number, because it can be changed into a prime (286393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1011 + ... + 1262.

It is an arithmetic number, because the mean of its divisors is an integer number (29562).

2²⁸⁶³⁹⁸ is an apocalyptic number.

286398 is an abundant number, since it is smaller than the sum of its proper divisors (423090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286398 is a wasteful number, since it uses less digits than its factorization.

286398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288 (or 2285 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 286398 is about 535.1616578194. The cubic root of 286398 is about 65.9158707687.

The spelling of 286398 in words is "two hundred eighty-six thousand, three hundred ninety-eight".