855829 has 8 divisors (see below), whose sum is σ = 943712. Its totient is φ = 771120.

The previous prime is 855821. The next prime is 855851. The reversal of 855829 is 928558.

It is a happy number.

855829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 855829 - 2³ = 855821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855821) 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, 207 + ... + 1324.

It is an arithmetic number, because the mean of its divisors is an integer number (117964).

2⁸⁵⁵⁸²⁹ is an apocalyptic number.

It is an amenable number.

855829 is a deficient number, since it is larger than the sum of its proper divisors (87883).

855829 is a wasteful number, since it uses less digits than its factorization.

855829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587.

The product of its digits is 28800, while the sum is 37.

The square root of 855829 is about 925.1102636983. The cubic root of 855829 is about 94.9428649983.

The spelling of 855829 in words is "eight hundred fifty-five thousand, eight hundred twenty-nine".