898920317 has 2 divisors, whose sum is σ = 898920318. Its totient is φ = 898920316.

The previous prime is 898920313. The next prime is 898920329. The reversal of 898920317 is 713029898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770007001 + 128913316 = 27749^2 + 11354^2 .

It is a cyclic number.

It is not a de Polignac number, because 898920317 - 2² = 898920313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898920313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449460158 + 449460159.

It is an arithmetic number, because the mean of its divisors is an integer number (449460159).

Almost surely, 2^898920317 is an apocalyptic number.

It is an amenable number.

898920317 is a deficient number, since it is larger than the sum of its proper divisors (1).

898920317 is an equidigital number, since it uses as much as digits as its factorization.

898920317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 898920317 is about 29981.9998832633. Note that the first 3 decimals coincide. The cubic root of 898920317 is about 965.1031477168.

The spelling of 898920317 in words is "eight hundred ninety-eight million, nine hundred twenty thousand, three hundred seventeen".