286220933 has 2 divisors, whose sum is σ = 286220934. Its totient is φ = 286220932.

The previous prime is 286220899. The next prime is 286221037. The reversal of 286220933 is 339022682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286218724 + 2209 = 16918^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 286220933 - 2⁸ = 286220677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 286220893 and 286220902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286228933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143110466 + 143110467.

It is an arithmetic number, because the mean of its divisors is an integer number (143110467).

Almost surely, 2^286220933 is an apocalyptic number.

It is an amenable number.

286220933 is a deficient number, since it is larger than the sum of its proper divisors (1).

286220933 is an equidigital number, since it uses as much as digits as its factorization.

286220933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 286220933 is about 16918.0652853688. The cubic root of 286220933 is about 659.0228369565.

The spelling of 286220933 in words is "two hundred eighty-six million, two hundred twenty thousand, nine hundred thirty-three".