898427817 has 24 divisors (see below), whose sum is σ = 1547604864. Its totient is φ = 491065344.

The previous prime is 898427809. The next prime is 898427819. The reversal of 898427817 is 718724898.

It is a happy number.

It is not a de Polignac number, because 898427817 - 2³ = 898427809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (898427819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308568 + ... + 311465.

It is an arithmetic number, because the mean of its divisors is an integer number (64483536).

Almost surely, 2^898427817 is an apocalyptic number.

It is an amenable number.

898427817 is a deficient number, since it is larger than the sum of its proper divisors (649177047).

898427817 is a wasteful number, since it uses less digits than its factorization.

898427817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620069 (or 620066 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 898427817 is about 29973.7854966636. The cubic root of 898427817 is about 964.9268621134.

The spelling of 898427817 in words is "eight hundred ninety-eight million, four hundred twenty-seven thousand, eight hundred seventeen".