869442656 has 12 divisors (see below), whose sum is σ = 1711715292. Its totient is φ = 434721312.

The previous prime is 869442631. The next prime is 869442661. The reversal of 869442656 is 656244968.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13585010 + ... + 13585073.

It is an arithmetic number, because the mean of its divisors is an integer number (142642941).

Almost surely, 2^869442656 is an apocalyptic number.

It is an amenable number.

869442656 is a deficient number, since it is larger than the sum of its proper divisors (842272636).

869442656 is a wasteful number, since it uses less digits than its factorization.

869442656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27170093 (or 27170085 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 50.

The square root of 869442656 is about 29486.3130282509. The cubic root of 869442656 is about 954.4363718229.

The spelling of 869442656 in words is "eight hundred sixty-nine million, four hundred forty-two thousand, six hundred fifty-six".