280280711 has 2 divisors, whose sum is σ = 280280712. Its totient is φ = 280280710.

The previous prime is 280280699. The next prime is 280280713. The reversal of 280280711 is 117082082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280280711 - 2¹⁰ = 280279687 is a prime.

It is a Sophie Germain prime.

Together with 280280713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280280713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140140355 + 140140356.

It is an arithmetic number, because the mean of its divisors is an integer number (140140356).

Almost surely, 2^280280711 is an apocalyptic number.

280280711 is a deficient number, since it is larger than the sum of its proper divisors (1).

280280711 is an equidigital number, since it uses as much as digits as its factorization.

280280711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 280280711 is about 16741.5862749024. The cubic root of 280280711 is about 654.4318138505.

The spelling of 280280711 in words is "two hundred eighty million, two hundred eighty thousand, seven hundred eleven".