898447 has 4 divisors (see below), whose sum is σ = 980136. Its totient is φ = 816760.

The previous prime is 898439. The next prime is 898459. The reversal of 898447 is 744898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 898447 - 2³ = 898439 is a prime.

It is a Duffinian number.

898447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898427) 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 in 3 ways as a sum of consecutive naturals, for example, 40828 + ... + 40849.

It is an arithmetic number, because the mean of its divisors is an integer number (245034).

2⁸⁹⁸⁴⁴⁷ is an apocalyptic number.

898447 is a deficient number, since it is larger than the sum of its proper divisors (81689).

898447 is a wasteful number, since it uses less digits than its factorization.

898447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81688.

The product of its digits is 64512, while the sum is 40.

The square root of 898447 is about 947.8644417848. The cubic root of 898447 is about 96.4933729688.

The spelling of 898447 in words is "eight hundred ninety-eight thousand, four hundred forty-seven".