286472009 has 2 divisors, whose sum is σ = 286472010. Its totient is φ = 286472008.

The previous prime is 286471993. The next prime is 286472029. The reversal of 286472009 is 900274682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286455625 + 16384 = 16925^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 286472009 - 2⁴ = 286471993 is a prime.

It is not a weakly prime, because it can be changed into another prime (286472029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143236004 + 143236005.

It is an arithmetic number, because the mean of its divisors is an integer number (143236005).

Almost surely, 2^286472009 is an apocalyptic number.

It is an amenable number.

286472009 is a deficient number, since it is larger than the sum of its proper divisors (1).

286472009 is an equidigital number, since it uses as much as digits as its factorization.

286472009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 286472009 is about 16925.4840108045. The cubic root of 286472009 is about 659.2154812158.

The spelling of 286472009 in words is "two hundred eighty-six million, four hundred seventy-two thousand, nine".