280627 has 2 divisors, whose sum is σ = 280628. Its totient is φ = 280626.

The previous prime is 280613. The next prime is 280639. The reversal of 280627 is 726082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280627 - 2⁷ = 280499 is a prime.

It is a d-powerful number, because it can be written as 2 + 8³ + 6⁷ + 0 + 2⁷ + 7² .

It is not a weakly prime, because it can be changed into another prime (280607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140313 + 140314.

It is an arithmetic number, because the mean of its divisors is an integer number (140314).

2²⁸⁰⁶²⁷ is an apocalyptic number.

280627 is a deficient number, since it is larger than the sum of its proper divisors (1).

280627 is an equidigital number, since it uses as much as digits as its factorization.

280627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 280627 is about 529.7423902238. The cubic root of 280627 is about 65.4701221462.

The spelling of 280627 in words is "two hundred eighty thousand, six hundred twenty-seven".