286683641 has 4 divisors (see below), whose sum is σ = 286724772. Its totient is φ = 286642512.

The previous prime is 286683619. The next prime is 286683667. The reversal of 286683641 is 146386682.

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 174768400 + 111915241 = 13220^2 + 10579^2 .

It is a cyclic number.

It is not a de Polignac number, because 286683641 - 2¹⁸ = 286421497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 286683592 and 286683601.

It is not an unprimeable number, because it can be changed into a prime (286683601) 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, 7226 + ... + 25011.

It is an arithmetic number, because the mean of its divisors is an integer number (71681193).

Almost surely, 2^286683641 is an apocalyptic number.

It is an amenable number.

286683641 is a deficient number, since it is larger than the sum of its proper divisors (41131).

286683641 is an equidigital number, since it uses as much as digits as its factorization.

286683641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41130.

The product of its digits is 331776, while the sum is 44.

The square root of 286683641 is about 16931.7347309719. The cubic root of 286683641 is about 659.3777736861.

The spelling of 286683641 in words is "two hundred eighty-six million, six hundred eighty-three thousand, six hundred forty-one".