286396493 has 2 divisors, whose sum is σ = 286396494. Its totient is φ = 286396492.

The previous prime is 286396459. The next prime is 286396511. The reversal of 286396493 is 394693682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255904009 + 30492484 = 15997^2 + 5522^2 .

It is a cyclic number.

It is not a de Polignac number, because 286396493 - 2⁸ = 286396237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286356493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143198246 + 143198247.

It is an arithmetic number, because the mean of its divisors is an integer number (143198247).

Almost surely, 2^286396493 is an apocalyptic number.

It is an amenable number.

286396493 is a deficient number, since it is larger than the sum of its proper divisors (1).

286396493 is an equidigital number, since it uses as much as digits as its factorization.

286396493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 50.

The square root of 286396493 is about 16923.2530265313. The cubic root of 286396493 is about 659.1575515408.

The spelling of 286396493 in words is "two hundred eighty-six million, three hundred ninety-six thousand, four hundred ninety-three".