280828841 has 2 divisors, whose sum is σ = 280828842. Its totient is φ = 280828840.

The previous prime is 280828777. The next prime is 280828859. The reversal of 280828841 is 148828082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218418841 + 62410000 = 14779^2 + 7900^2 .

It is a cyclic number.

It is not a de Polignac number, because 280828841 - 2⁶ = 280828777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (280828861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140414420 + 140414421.

It is an arithmetic number, because the mean of its divisors is an integer number (140414421).

Almost surely, 2^280828841 is an apocalyptic number.

It is an amenable number.

280828841 is a deficient number, since it is larger than the sum of its proper divisors (1).

280828841 is an equidigital number, since it uses as much as digits as its factorization.

280828841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65536, while the sum is 41.

The square root of 280828841 is about 16757.9485916385. The cubic root of 280828841 is about 654.8581484866.

The spelling of 280828841 in words is "two hundred eighty million, eight hundred twenty-eight thousand, eight hundred forty-one".