869429808 has 320 divisors, whose sum is σ = 2879815680. Its totient is φ = 249080832.

The previous prime is 869429801. The next prime is 869429809. The reversal of 869429808 is 808924968.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (869429801) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6845841 + ... + 6845967.

It is an arithmetic number, because the mean of its divisors is an integer number (8999424).

Almost surely, 2^869429808 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 869429808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1439907840).

869429808 is an abundant number, since it is smaller than the sum of its proper divisors (2010385872).

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

869429808 is a wasteful number, since it uses less digits than its factorization.

869429808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 221 counting only the distinct ones).

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

The square root of 869429808 is about 29486.0951636530. The cubic root of 869429808 is about 954.4316704743.

The spelling of 869429808 in words is "eight hundred sixty-nine million, four hundred twenty-nine thousand, eight hundred eight".