280933 has 2 divisors, whose sum is σ = 280934. Its totient is φ = 280932.

The previous prime is 280927. The next prime is 280939. The reversal of 280933 is 339082.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (280927) and next prime (280939).

It can be written as a sum of positive squares in only one way, i.e., 214369 + 66564 = 463^2 + 258^2 .

It is a cyclic number.

It is not a de Polignac number, because 280933 - 2¹⁷ = 149861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280898 and 280907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140466 + 140467.

It is an arithmetic number, because the mean of its divisors is an integer number (140467).

2²⁸⁰⁹³³ is an apocalyptic number.

It is an amenable number.

280933 is a deficient number, since it is larger than the sum of its proper divisors (1).

280933 is an equidigital number, since it uses as much as digits as its factorization.

280933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 280933 is about 530.0311311612. The cubic root of 280933 is about 65.4939100451.

The spelling of 280933 in words is "two hundred eighty thousand, nine hundred thirty-three".