283256993 has 2 divisors, whose sum is σ = 283256994. Its totient is φ = 283256992.

The previous prime is 283256971. The next prime is 283257031. The reversal of 283256993 is 399652382.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258823744 + 24433249 = 16088^2 + 4943^2 .

It is a cyclic number.

It is not a de Polignac number, because 283256993 - 2¹⁴ = 283240609 is a prime.

It is not a weakly prime, because it can be changed into another prime (283256903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141628496 + 141628497.

It is an arithmetic number, because the mean of its divisors is an integer number (141628497).

Almost surely, 2^283256993 is an apocalyptic number.

It is an amenable number.

283256993 is a deficient number, since it is larger than the sum of its proper divisors (1).

283256993 is an equidigital number, since it uses as much as digits as its factorization.

283256993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 47.

The square root of 283256993 is about 16830.2404320319. The cubic root of 283256993 is about 656.7401182435.

The spelling of 283256993 in words is "two hundred eighty-three million, two hundred fifty-six thousand, nine hundred ninety-three".