857079552 has 144 divisors (see below), whose sum is σ = 2629009152. Its totient is φ = 242810880.

The previous prime is 857079551. The next prime is 857079563. The reversal of 857079552 is 255970758.

857079552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857079551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703648 + ... + 704864.

It is an arithmetic number, because the mean of its divisors is an integer number (18257008).

Almost surely, 2^857079552 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 857079552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314504576).

857079552 is an abundant number, since it is smaller than the sum of its proper divisors (1771929600).

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

857079552 is a wasteful number, since it uses less digits than its factorization.

857079552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 48.

The square root of 857079552 is about 29275.9210273563. The cubic root of 857079552 is about 949.8908653949.

It can be divided in two parts, 85707 and 9552, that added together give a palindrome (95259).

The spelling of 857079552 in words is "eight hundred fifty-seven million, seventy-nine thousand, five hundred fifty-two".