898663 has 2 divisors, whose sum is σ = 898664. Its totient is φ = 898662.

The previous prime is 898661. The next prime is 898669. The reversal of 898663 is 366898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 898663 - 2¹ = 898661 is a prime.

Together with 898661, it forms a pair of twin primes.

898663 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449331 + 449332.

It is an arithmetic number, because the mean of its divisors is an integer number (449332).

2⁸⁹⁸⁶⁶³ is an apocalyptic number.

898663 is a deficient number, since it is larger than the sum of its proper divisors (1).

898663 is an equidigital number, since it uses as much as digits as its factorization.

898663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 898663 is about 947.9783752808. The cubic root of 898663 is about 96.5011051624.

The spelling of 898663 in words is "eight hundred ninety-eight thousand, six hundred sixty-three".