857201284 has 9 divisors (see below), whose sum is σ = 1500204727. Its totient is φ = 428571364.

The previous prime is 857201281. The next prime is 857201291. The reversal of 857201284 is 482102758.

The square root of 857201284 is 29278.

It is a perfect power (a square), and thus also a powerful number.

857201284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857201281) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 51237 + ... + 65875.

Almost surely, 2^857201284 is an apocalyptic number.

857201284 is the 29278-th square number.

It is an amenable number.

857201284 is a deficient number, since it is larger than the sum of its proper divisors (643003443).

857201284 is an frugal number, since it uses more digits than its factorization.

857201284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29282 (or 14641 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The cubic root of 857201284 is about 949.9358346320.

The spelling of 857201284 in words is "eight hundred fifty-seven million, two hundred one thousand, two hundred eighty-four".