857289223 has 8 divisors (see below), whose sum is σ = 1006239392. Its totient is φ = 714959136.

The previous prime is 857289203. The next prime is 857289229. The reversal of 857289223 is 322982758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 857289223 - 2¹⁷ = 857158151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857289229) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1654740 + ... + 1655257.

It is an arithmetic number, because the mean of its divisors is an integer number (125779924).

Almost surely, 2^857289223 is an apocalyptic number.

857289223 is a deficient number, since it is larger than the sum of its proper divisors (148950169).

857289223 is a wasteful number, since it uses less digits than its factorization.

857289223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310041.

The product of its digits is 483840, while the sum is 46.

The square root of 857289223 is about 29279.5017546406. The cubic root of 857289223 is about 949.9683176876.

The spelling of 857289223 in words is "eight hundred fifty-seven million, two hundred eighty-nine thousand, two hundred twenty-three".