857646104 has 32 divisors (see below), whose sum is σ = 1840490400. Its totient is φ = 367027200.

The previous prime is 857646091. The next prime is 857646109. The reversal of 857646104 is 401646758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857646109) 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, 28904 + ... + 50504.

It is an arithmetic number, because the mean of its divisors is an integer number (57515325).

Almost surely, 2^857646104 is an apocalyptic number.

It is an amenable number.

857646104 is an abundant number, since it is smaller than the sum of its proper divisors (982844296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857646104 is a wasteful number, since it uses less digits than its factorization.

857646104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22323 (or 22319 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 857646104 is about 29285.5955035919. The cubic root of 857646104 is about 950.1001201959.

The spelling of 857646104 in words is "eight hundred fifty-seven million, six hundred forty-six thousand, one hundred four".