898795649 has 2 divisors, whose sum is σ = 898795650. Its totient is φ = 898795648.

The previous prime is 898795607. The next prime is 898795657. The reversal of 898795649 is 946597898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499075600 + 399720049 = 22340^2 + 19993^2 .

It is a cyclic number.

It is not a de Polignac number, because 898795649 - 2¹⁶ = 898730113 is a prime.

It is a super-3 number, since 3×898795649³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (898795669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449397824 + 449397825.

It is an arithmetic number, because the mean of its divisors is an integer number (449397825).

Almost surely, 2^898795649 is an apocalyptic number.

It is an amenable number.

898795649 is a deficient number, since it is larger than the sum of its proper divisors (1).

898795649 is an equidigital number, since it uses as much as digits as its factorization.

898795649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 65.

The square root of 898795649 is about 29979.9207637379. The cubic root of 898795649 is about 965.0585301018.

The spelling of 898795649 in words is "eight hundred ninety-eight million, seven hundred ninety-five thousand, six hundred forty-nine".