898974721 has 8 divisors (see below), whose sum is σ = 948729600. Its totient is φ = 849463920.

The previous prime is 898974719. The next prime is 898974737. The reversal of 898974721 is 127479898.

It is a happy number.

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 898974721 - 2¹ = 898974719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (898974701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53425 + ... + 68206.

It is an arithmetic number, because the mean of its divisors is an integer number (118591200).

Almost surely, 2^898974721 is an apocalyptic number.

It is an amenable number.

898974721 is a deficient number, since it is larger than the sum of its proper divisors (49754879).

898974721 is a wasteful number, since it uses less digits than its factorization.

898974721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122039.

The product of its digits is 2032128, while the sum is 55.

The square root of 898974721 is about 29982.9071472397. The cubic root of 898974721 is about 965.1226171519.

The spelling of 898974721 in words is "eight hundred ninety-eight million, nine hundred seventy-four thousand, seven hundred twenty-one".