869387164 has 12 divisors (see below), whose sum is σ = 1529834488. Its totient is φ = 432291600.

The previous prime is 869387147. The next prime is 869387173. The reversal of 869387164 is 461783968.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 599682 + ... + 601129.

Almost surely, 2^869387164 is an apocalyptic number.

It is an amenable number.

869387164 is a deficient number, since it is larger than the sum of its proper divisors (660447324).

869387164 is a wasteful number, since it uses less digits than its factorization.

869387164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200996 (or 1200994 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 869387164 is about 29485.3720342817. The cubic root of 869387164 is about 954.4160658220.

The spelling of 869387164 in words is "eight hundred sixty-nine million, three hundred eighty-seven thousand, one hundred sixty-four".