280766963 has 2 divisors, whose sum is σ = 280766964. Its totient is φ = 280766962.

The previous prime is 280766921. The next prime is 280766977. The reversal of 280766963 is 369667082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280766963 - 2¹⁰ = 280765939 is a prime.

It is not a weakly prime, because it can be changed into another prime (280766903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140383481 + 140383482.

It is an arithmetic number, because the mean of its divisors is an integer number (140383482).

Almost surely, 2^280766963 is an apocalyptic number.

280766963 is a deficient number, since it is larger than the sum of its proper divisors (1).

280766963 is an equidigital number, since it uses as much as digits as its factorization.

280766963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 280766963 is about 16756.1022615643. The cubic root of 280766963 is about 654.8100476708.

The spelling of 280766963 in words is "two hundred eighty million, seven hundred sixty-six thousand, nine hundred sixty-three".