283680533 has 2 divisors, whose sum is σ = 283680534. Its totient is φ = 283680532.

The previous prime is 283680497. The next prime is 283680541. The reversal of 283680533 is 335086382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197599249 + 86081284 = 14057^2 + 9278^2 .

It is a cyclic number.

It is not a de Polignac number, because 283680533 - 2⁸ = 283680277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (283680833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141840266 + 141840267.

It is an arithmetic number, because the mean of its divisors is an integer number (141840267).

Almost surely, 2^283680533 is an apocalyptic number.

It is an amenable number.

283680533 is a deficient number, since it is larger than the sum of its proper divisors (1).

283680533 is an equidigital number, since it uses as much as digits as its factorization.

283680533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 283680533 is about 16842.8184399168. The cubic root of 283680533 is about 657.0672854382.

The spelling of 283680533 in words is "two hundred eighty-three million, six hundred eighty thousand, five hundred thirty-three".