858793088 has 64 divisors (see below), whose sum is σ = 1770363000. Its totient is φ = 414646272.

The previous prime is 858793087. The next prime is 858793123. The reversal of 858793088 is 880397858.

It can be written as a sum of positive squares in 4 ways, for example, as 684764224 + 174028864 = 26168^2 + 13192^2 .

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 (858793081) 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, 705056 + ... + 706272.

Almost surely, 2^858793088 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 858793088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885181500).

858793088 is an abundant number, since it is smaller than the sum of its proper divisors (911569912).

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

858793088 is a wasteful number, since it uses less digits than its factorization.

858793088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 56.

The square root of 858793088 is about 29305.1716937472. The cubic root of 858793088 is about 950.5234743801.

The spelling of 858793088 in words is "eight hundred fifty-eight million, seven hundred ninety-three thousand, eighty-eight".