869508204 has 12 divisors (see below), whose sum is σ = 2028852504. Its totient is φ = 289836064.

The previous prime is 869508187. The next prime is 869508223. The reversal of 869508204 is 402805968.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36229497 + ... + 36229520.

It is an arithmetic number, because the mean of its divisors is an integer number (169071042).

Almost surely, 2^869508204 is an apocalyptic number.

It is an amenable number.

869508204 is an abundant number, since it is smaller than the sum of its proper divisors (1159344300).

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

869508204 is a wasteful number, since it uses less digits than its factorization.

869508204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72459024 (or 72459022 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 869508204 is about 29487.4245060500. The cubic root of 869508204 is about 954.4603564689.

The spelling of 869508204 in words is "eight hundred sixty-nine million, five hundred eight thousand, two hundred four".