857804752 has 80 divisors (see below), whose sum is σ = 1953525760. Its totient is φ = 357312384.

The previous prime is 857804749. The next prime is 857804767. The reversal of 857804752 is 257408758.

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 in 15 ways as a sum of consecutive naturals, for example, 592093 + ... + 593539.

It is an arithmetic number, because the mean of its divisors is an integer number (24419072).

Almost surely, 2^857804752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857804752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976762880).

857804752 is an abundant number, since it is smaller than the sum of its proper divisors (1095721008).

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

857804752 is a wasteful number, since it uses less digits than its factorization.

857804752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 46.

The square root of 857804752 is about 29288.3040137185. The cubic root of 857804752 is about 950.1586999877.

The spelling of 857804752 in words is "eight hundred fifty-seven million, eight hundred four thousand, seven hundred fifty-two".