869329628 has 12 divisors (see below), whose sum is σ = 1523812920. Its totient is φ = 433954512.

The previous prime is 869329627. The next prime is 869329631. The reversal of 869329628 is 826923968.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 869329628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869329627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174818 + ... + 179721.

It is an arithmetic number, because the mean of its divisors is an integer number (126984410).

Almost surely, 2^869329628 is an apocalyptic number.

It is an amenable number.

869329628 is a deficient number, since it is larger than the sum of its proper divisors (654483292).

869329628 is a wasteful number, since it uses less digits than its factorization.

869329628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355156 (or 355154 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 869329628 is about 29484.3963478990. The cubic root of 869329628 is about 954.3950109547.

The spelling of 869329628 in words is "eight hundred sixty-nine million, three hundred twenty-nine thousand, six hundred twenty-eight".