280608043 has 2 divisors, whose sum is σ = 280608044. Its totient is φ = 280608042.

The previous prime is 280608007. The next prime is 280608047. The reversal of 280608043 is 340806082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280608043 - 2¹⁷ = 280476971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280607996 and 280608014.

It is not a weakly prime, because it can be changed into another prime (280608047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140304021 + 140304022.

It is an arithmetic number, because the mean of its divisors is an integer number (140304022).

Almost surely, 2^280608043 is an apocalyptic number.

280608043 is a deficient number, since it is larger than the sum of its proper divisors (1).

280608043 is an equidigital number, since it uses as much as digits as its factorization.

280608043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 280608043 is about 16751.3594373710. The cubic root of 280608043 is about 654.6864789389.

The spelling of 280608043 in words is "two hundred eighty million, six hundred eight thousand, forty-three".