898739 has 8 divisors (see below), whose sum is σ = 984960. Its totient is φ = 816256.

The previous prime is 898727. The next prime is 898753. The reversal of 898739 is 937898.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 898739 - 2⁸ = 898483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 898739.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 898739.

It is not an unprimeable number, because it can be changed into a prime (898769) 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 7 ways as a sum of consecutive naturals, for example, 419 + ... + 1404.

It is an arithmetic number, because the mean of its divisors is an integer number (123120).

2⁸⁹⁸⁷³⁹ is an apocalyptic number.

898739 is a deficient number, since it is larger than the sum of its proper divisors (86221).

898739 is a wasteful number, since it uses less digits than its factorization.

898739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869.

The product of its digits is 108864, while the sum is 44.

The square root of 898739 is about 948.0184597359. The cubic root of 898739 is about 96.5038254544.

The spelling of 898739 in words is "eight hundred ninety-eight thousand, seven hundred thirty-nine".