890353002281 has 2 divisors, whose sum is σ = 890353002282. Its totient is φ = 890353002280.

The previous prime is 890353002271. The next prime is 890353002283. The reversal of 890353002281 is 182200353098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593092515625 + 297260486656 = 770125^2 + 545216^2 .

It is a cyclic number.

It is not a de Polignac number, because 890353002281 - 2²⁶ = 890285893417 is a prime.

It is a super-2 number, since 2×890353002281² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 890353002283, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (890353002283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445176501140 + 445176501141.

It is an arithmetic number, because the mean of its divisors is an integer number (445176501141).

Almost surely, 2^890353002281 is an apocalyptic number.

It is an amenable number.

890353002281 is a deficient number, since it is larger than the sum of its proper divisors (1).

890353002281 is an equidigital number, since it uses as much as digits as its factorization.

890353002281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 890353002281 in words is "eight hundred ninety billion, three hundred fifty-three million, two thousand, two hundred eighty-one".