280432027 has 2 divisors, whose sum is σ = 280432028. Its totient is φ = 280432026.

The previous prime is 280432021. The next prime is 280432049. The reversal of 280432027 is 720234082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-280432027 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 280431986 and 280432004.

It is not a weakly prime, because it can be changed into another prime (280432021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140216013 + 140216014.

It is an arithmetic number, because the mean of its divisors is an integer number (140216014).

Almost surely, 2^280432027 is an apocalyptic number.

280432027 is a deficient number, since it is larger than the sum of its proper divisors (1).

280432027 is an equidigital number, since it uses as much as digits as its factorization.

280432027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 280432027 is about 16746.1048306763. The cubic root of 280432027 is about 654.5495626946.

The spelling of 280432027 in words is "two hundred eighty million, four hundred thirty-two thousand, twenty-seven".