869654898 has 48 divisors (see below), whose sum is σ = 2160452736. Its totient is φ = 247662720.

The previous prime is 869654887. The next prime is 869654921. The reversal of 869654898 is 898456968.

869654898 is a `hidden beast` number, since 86 + 9 + 6 + 548 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28090 + ... + 50282.

It is an arithmetic number, because the mean of its divisors is an integer number (45009432).

Almost surely, 2^869654898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869654898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080226368).

869654898 is an abundant number, since it is smaller than the sum of its proper divisors (1290797838).

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

869654898 is a wasteful number, since it uses less digits than its factorization.

869654898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22519 (or 22516 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The square root of 869654898 is about 29489.9118004785. The cubic root of 869654898 is about 954.5140288529.

The spelling of 869654898 in words is "eight hundred sixty-nine million, six hundred fifty-four thousand, eight hundred ninety-eight".