980895281 has 2 divisors, whose sum is σ = 980895282. Its totient is φ = 980895280.

The previous prime is 980895269. The next prime is 980895301. The reversal of 980895281 is 182598089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556535281 + 424360000 = 23591^2 + 20600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980895281 is a prime.

It is a super-2 number, since 2×980895281² = 1924311104576137922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (980895581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490447640 + 490447641.

It is an arithmetic number, because the mean of its divisors is an integer number (490447641).

Almost surely, 2^980895281 is an apocalyptic number.

It is an amenable number.

980895281 is a deficient number, since it is larger than the sum of its proper divisors (1).

980895281 is an equidigital number, since it uses as much as digits as its factorization.

980895281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 50.

The square root of 980895281 is about 31319.2477719373. The cubic root of 980895281 is about 993.5907698623.

The spelling of 980895281 in words is "nine hundred eighty million, eight hundred ninety-five thousand, two hundred eighty-one".