286968089 has 4 divisors (see below), whose sum is σ = 287052324. Its totient is φ = 286883856.

The previous prime is 286968083. The next prime is 286968107. The reversal of 286968089 is 980869682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35904064 + 251064025 = 5992^2 + 15845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-286968089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286968083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36782 + ... + 43895.

It is an arithmetic number, because the mean of its divisors is an integer number (71763081).

Almost surely, 2^286968089 is an apocalyptic number.

It is an amenable number.

286968089 is a deficient number, since it is larger than the sum of its proper divisors (84235).

286968089 is an equidigital number, since it uses as much as digits as its factorization.

286968089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84234.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 286968089 is about 16940.1324965302. The cubic root of 286968089 is about 659.5957801856.

The spelling of 286968089 in words is "two hundred eighty-six million, nine hundred sixty-eight thousand, eighty-nine".