489411281 has 2 divisors, whose sum is σ = 489411282. Its totient is φ = 489411280.

The previous prime is 489411257. The next prime is 489411287. The reversal of 489411281 is 182114984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361608256 + 127803025 = 19016^2 + 11305^2 .

It is a cyclic number.

It is not a de Polignac number, because 489411281 - 2⁶ = 489411217 is a prime.

It is a super-2 number, since 2×489411281² = 479046803940121922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (489411287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244705640 + 244705641.

It is an arithmetic number, because the mean of its divisors is an integer number (244705641).

Almost surely, 2^489411281 is an apocalyptic number.

It is an amenable number.

489411281 is a deficient number, since it is larger than the sum of its proper divisors (1).

489411281 is an equidigital number, since it uses as much as digits as its factorization.

489411281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 38.

The square root of 489411281 is about 22122.6418178300. The cubic root of 489411281 is about 788.0576547653.

The spelling of 489411281 in words is "four hundred eighty-nine million, four hundred eleven thousand, two hundred eighty-one".