280603667 has 2 divisors, whose sum is σ = 280603668. Its totient is φ = 280603666.

The previous prime is 280603627. The next prime is 280603669. The reversal of 280603667 is 766306082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280603667 - 2¹⁴ = 280587283 is a prime.

Together with 280603669, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 280603667.

It is not a weakly prime, because it can be changed into another prime (280603669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140301833 + 140301834.

It is an arithmetic number, because the mean of its divisors is an integer number (140301834).

Almost surely, 2^280603667 is an apocalyptic number.

280603667 is a deficient number, since it is larger than the sum of its proper divisors (1).

280603667 is an equidigital number, since it uses as much as digits as its factorization.

280603667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 280603667 is about 16751.2288205970. The cubic root of 280603667 is about 654.6830757067.

The spelling of 280603667 in words is "two hundred eighty million, six hundred three thousand, six hundred sixty-seven".