286996 has 12 divisors (see below), whose sum is σ = 506548. Its totient is φ = 142272.

The previous prime is 286987. The next prime is 286999. The reversal of 286996 is 699682.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171396 + 115600 = 414^2 + 340^2 .

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 286996.

It is not an unprimeable number, because it can be changed into a prime (286999) by changing a digit.

286996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400 + ... + 856.

2²⁸⁶⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

286996 is a deficient number, since it is larger than the sum of its proper divisors (219552).

286996 is a wasteful number, since it uses less digits than its factorization.

286996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 286996 is about 535.7200761592. The cubic root of 286996 is about 65.9617163958.

Subtracting 286996 from its reverse (699682), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 286996 in words is "two hundred eighty-six thousand, nine hundred ninety-six".