869204736 has 72 divisors (see below), whose sum is σ = 2570411760. Its totient is φ = 289732608.

The previous prime is 869204719. The next prime is 869204741. The reversal of 869204736 is 637402968.

It is a tau number, because it is divible by the number of its divisors (72).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 869204691 and 869204700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55965 + ... + 69788.

Almost surely, 2^869204736 is an apocalyptic number.

It is an amenable number.

869204736 is an abundant number, since it is smaller than the sum of its proper divisors (1701207024).

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

869204736 is a wasteful number, since it uses less digits than its factorization.

869204736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125778 (or 125758 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 869204736 is about 29482.2783380118. The cubic root of 869204736 is about 954.3493044676.

The spelling of 869204736 in words is "eight hundred sixty-nine million, two hundred four thousand, seven hundred thirty-six".