280927 has 2 divisors, whose sum is σ = 280928. Its totient is φ = 280926.

The previous prime is 280921. The next prime is 280933. The reversal of 280927 is 729082.

It is a balanced prime because it is at equal distance from previous prime (280921) and next prime (280933).

It is a cyclic number.

It is not a de Polignac number, because 280927 - 2¹¹ = 278879 is a prime.

280927 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 280895 and 280904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140463 + 140464.

It is an arithmetic number, because the mean of its divisors is an integer number (140464).

2²⁸⁰⁹²⁷ is an apocalyptic number.

280927 is a deficient number, since it is larger than the sum of its proper divisors (1).

280927 is an equidigital number, since it uses as much as digits as its factorization.

280927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 280927 is about 530.0254710861. The cubic root of 280927 is about 65.4934437817.

It can be divided in two parts, 280 and 927, that multiplied together give a triangular number (259560 = T₇₂₀).

The spelling of 280927 in words is "two hundred eighty thousand, nine hundred twenty-seven".