280852447 has 2 divisors, whose sum is σ = 280852448. Its totient is φ = 280852446.

The previous prime is 280852441. The next prime is 280852463. The reversal of 280852447 is 744258082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280852447 - 2¹⁹ = 280328159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280852441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140426223 + 140426224.

It is an arithmetic number, because the mean of its divisors is an integer number (140426224).

Almost surely, 2^280852447 is an apocalyptic number.

280852447 is a deficient number, since it is larger than the sum of its proper divisors (1).

280852447 is an equidigital number, since it uses as much as digits as its factorization.

280852447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 280852447 is about 16758.6528993234. The cubic root of 280852447 is about 654.8764967307.

It can be divided in two parts, 2808 and 52447, that added together give a palindrome (55255).

The spelling of 280852447 in words is "two hundred eighty million, eight hundred fifty-two thousand, four hundred forty-seven".