859554 has 36 divisors (see below), whose sum is σ = 2009826. Its totient is φ = 264576.

The previous prime is 859553. The next prime is 859559. The reversal of 859554 is 455958.

It is a happy number.

859554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 859329 + 225 = 927^2 + 15^2 .

Its product of digits (36000) is a multiple of the sum of its prime divisors (75).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859553) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16192 + ... + 16244.

2⁸⁵⁹⁵⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 859554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004913).

859554 is an abundant number, since it is smaller than the sum of its proper divisors (1150272).

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

859554 is a wasteful number, since it uses less digits than its factorization.

859554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 75 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 859554 is about 927.1213512804. The cubic root of 859554 is about 95.0804120643.

It can be divided in two parts, 8595 and 54, that added together give a square (8649 = 93²).

The spelling of 859554 in words is "eight hundred fifty-nine thousand, five hundred fifty-four".