286328407 has 2 divisors, whose sum is σ = 286328408. Its totient is φ = 286328406.

The previous prime is 286328389. The next prime is 286328417. The reversal of 286328407 is 704823682.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-286328407 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 286328407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286328417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143164203 + 143164204.

It is an arithmetic number, because the mean of its divisors is an integer number (143164204).

Almost surely, 2^286328407 is an apocalyptic number.

286328407 is a deficient number, since it is larger than the sum of its proper divisors (1).

286328407 is an equidigital number, since it uses as much as digits as its factorization.

286328407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 286328407 is about 16921.2412960752. The cubic root of 286328407 is about 659.1053128215.

The spelling of 286328407 in words is "two hundred eighty-six million, three hundred twenty-eight thousand, four hundred seven".