280907423 has 2 divisors, whose sum is σ = 280907424. Its totient is φ = 280907422.

The previous prime is 280907411. The next prime is 280907449. The reversal of 280907423 is 324709082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280907423 - 2¹² = 280903327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280907323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140453711 + 140453712.

It is an arithmetic number, because the mean of its divisors is an integer number (140453712).

Almost surely, 2^280907423 is an apocalyptic number.

280907423 is a deficient number, since it is larger than the sum of its proper divisors (1).

280907423 is an equidigital number, since it uses as much as digits as its factorization.

280907423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 280907423 is about 16760.2930463641. The cubic root of 280907423 is about 654.9192239608.

The spelling of 280907423 in words is "two hundred eighty million, nine hundred seven thousand, four hundred twenty-three".