869478500 has 96 divisors (see below), whose sum is σ = 2091398400. Its totient is φ = 313152000.

The previous prime is 869478487. The next prime is 869478523. The reversal of 869478500 is 5874968.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 620801 + ... + 622199.

It is an arithmetic number, because the mean of its divisors is an integer number (21785400).

Almost surely, 2^869478500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869478500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045699200).

869478500 is an abundant number, since it is smaller than the sum of its proper divisors (1221919900).

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

869478500 is a wasteful number, since it uses less digits than its factorization.

869478500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 869478500 is about 29486.9208294118. The cubic root of 869478500 is about 954.4494876379.

The spelling of 869478500 in words is "eight hundred sixty-nine million, four hundred seventy-eight thousand, five hundred".