869298228 has 36 divisors (see below), whose sum is σ = 2205238308. Its totient is φ = 288731520.

The previous prime is 869298223. The next prime is 869298233. The reversal of 869298228 is 822892968.

It is an interprime number because it is at equal distance from previous prime (869298223) and next prime (869298233).

It can be written as a sum of positive squares in 2 ways, for example, as 571114404 + 298183824 = 23898^2 + 17268^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869298223) 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 11 ways as a sum of consecutive naturals, for example, 32851 + ... + 53082.

Almost surely, 2^869298228 is an apocalyptic number.

It is an amenable number.

869298228 is an abundant number, since it is smaller than the sum of its proper divisors (1335940080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869298228 is a wasteful number, since it uses less digits than its factorization.

869298228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86224 (or 86219 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 869298228 is about 29483.8638580495. The cubic root of 869298228 is about 954.3835199685.

The spelling of 869298228 in words is "eight hundred sixty-nine million, two hundred ninety-eight thousand, two hundred twenty-eight".