280884413 has 2 divisors, whose sum is σ = 280884414. Its totient is φ = 280884412.

The previous prime is 280884347. The next prime is 280884469. The reversal of 280884413 is 314488082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248314564 + 32569849 = 15758^2 + 5707^2 .

It is a cyclic number.

It is not a de Polignac number, because 280884413 - 2¹² = 280880317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280884493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140442206 + 140442207.

It is an arithmetic number, because the mean of its divisors is an integer number (140442207).

Almost surely, 2^280884413 is an apocalyptic number.

It is an amenable number.

280884413 is a deficient number, since it is larger than the sum of its proper divisors (1).

280884413 is an equidigital number, since it uses as much as digits as its factorization.

280884413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 280884413 is about 16759.6065884614. The cubic root of 280884413 is about 654.9013413162.

The spelling of 280884413 in words is "two hundred eighty million, eight hundred eighty-four thousand, four hundred thirteen".