280873003 has 2 divisors, whose sum is σ = 280873004. Its totient is φ = 280873002.

The previous prime is 280872973. The next prime is 280873007. The reversal of 280873003 is 300378082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280873003 - 2⁵ = 280872971 is a prime.

It is not a weakly prime, because it can be changed into another prime (280873007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140436501 + 140436502.

It is an arithmetic number, because the mean of its divisors is an integer number (140436502).

Almost surely, 2^280873003 is an apocalyptic number.

280873003 is a deficient number, since it is larger than the sum of its proper divisors (1).

280873003 is an equidigital number, since it uses as much as digits as its factorization.

280873003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 280873003 is about 16759.2661832194. The cubic root of 280873003 is about 654.8924734627.

The spelling of 280873003 in words is "two hundred eighty million, eight hundred seventy-three thousand, three".