898795647 has 6 divisors (see below), whose sum is σ = 1298260392. Its totient is φ = 599197092.

The previous prime is 898795607. The next prime is 898795649. The reversal of 898795647 is 746597898.

It is not a de Polignac number, because 898795647 - 2¹⁰ = 898794623 is a prime.

It is a super-2 number, since 2×898795647² = 1615667230132297218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898795649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49933083 + ... + 49933100.

It is an arithmetic number, because the mean of its divisors is an integer number (216376732).

Almost surely, 2^898795647 is an apocalyptic number.

898795647 is a deficient number, since it is larger than the sum of its proper divisors (399464745).

898795647 is a wasteful number, since it uses less digits than its factorization.

898795647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99866189 (or 99866186 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The square root of 898795647 is about 29979.9207303822. The cubic root of 898795647 is about 965.0585293860.

The spelling of 898795647 in words is "eight hundred ninety-eight million, seven hundred ninety-five thousand, six hundred forty-seven".