898284643 has 4 divisors (see below), whose sum is σ = 898375968. Its totient is φ = 898193320.

The previous prime is 898284571. The next prime is 898284661. The reversal of 898284643 is 346482898.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-898284643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (898284043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28843 + ... + 51268.

It is an arithmetic number, because the mean of its divisors is an integer number (224593992).

Almost surely, 2^898284643 is an apocalyptic number.

898284643 is a deficient number, since it is larger than the sum of its proper divisors (91325).

898284643 is a wasteful number, since it uses less digits than its factorization.

898284643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91324.

The product of its digits is 2654208, while the sum is 52.

The square root of 898284643 is about 29971.3970812173. The cubic root of 898284643 is about 964.8756022810.

The spelling of 898284643 in words is "eight hundred ninety-eight million, two hundred eighty-four thousand, six hundred forty-three".