869767140 has 96 divisors (see below), whose sum is σ = 2728623744. Its totient is φ = 205148160.

The previous prime is 869767139. The next prime is 869767147. The reversal of 869767140 is 41767968.

It is a self number, because there is not a number n which added to its sum of digits gives 869767140.

It is not an unprimeable number, because it can be changed into a prime (869767147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6612 + ... + 42228.

It is an arithmetic number, because the mean of its divisors is an integer number (28423164).

Almost surely, 2^869767140 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 869767140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1364311872).

869767140 is an abundant number, since it is smaller than the sum of its proper divisors (1858856604).

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

869767140 is a wasteful number, since it uses less digits than its factorization.

869767140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35677 (or 35675 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 869767140 is about 29491.8147966516. The cubic root of 869767140 is about 954.5550918672. Note that the first 3 decimals are identical.

The spelling of 869767140 in words is "eight hundred sixty-nine million, seven hundred sixty-seven thousand, one hundred forty".