857786496 has 64 divisors (see below), whose sum is σ = 2604002880. Its totient is φ = 245081088.

The previous prime is 857786477. The next prime is 857786497. The reversal of 857786496 is 694687758.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (857786497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156871 + ... + 162246.

It is an arithmetic number, because the mean of its divisors is an integer number (40687545).

Almost surely, 2^857786496 is an apocalyptic number.

It is an amenable number.

857786496 is an abundant number, since it is smaller than the sum of its proper divisors (1746216384).

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

857786496 is a wasteful number, since it uses less digits than its factorization.

857786496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319141 (or 319129 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 60.

The square root of 857786496 is about 29287.9923518154. The cubic root of 857786496 is about 950.1519594405.

The spelling of 857786496 in words is "eight hundred fifty-seven million, seven hundred eighty-six thousand, four hundred ninety-six".