427880281 has 2 divisors, whose sum is σ = 427880282. Its totient is φ = 427880280.

The previous prime is 427880279. The next prime is 427880303. The reversal of 427880281 is 182088724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365153881 + 62726400 = 19109^2 + 7920^2 .

It is a cyclic number.

It is not a de Polignac number, because 427880281 - 2¹ = 427880279 is a prime.

It is a super-2 number, since 2×427880281² = 366163069737277922, which contains 22 as substring.

Together with 427880279, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427880221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213940140 + 213940141.

It is an arithmetic number, because the mean of its divisors is an integer number (213940141).

Almost surely, 2^427880281 is an apocalyptic number.

It is an amenable number.

427880281 is a deficient number, since it is larger than the sum of its proper divisors (1).

427880281 is an equidigital number, since it uses as much as digits as its factorization.

427880281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 427880281 is about 20685.2672450708. The cubic root of 427880281 is about 753.5419316656.

The spelling of 427880281 in words is "four hundred twenty-seven million, eight hundred eighty thousand, two hundred eighty-one".