855498 has 16 divisors (see below), whose sum is σ = 1955520. Its totient is φ = 244416.

The previous prime is 855467. The next prime is 855499. The reversal of 855498 is 894558.

855498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 855498.

It is not an unprimeable number, because it can be changed into a prime (855499) by changing a digit.

855498 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10143 + ... + 10226.

It is an arithmetic number, because the mean of its divisors is an integer number (122220).

2⁸⁵⁵⁴⁹⁸ is an apocalyptic number.

855498 is an abundant number, since it is smaller than the sum of its proper divisors (1100022).

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

855498 is a wasteful number, since it uses less digits than its factorization.

855498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381.

The product of its digits is 57600, while the sum is 39.

The square root of 855498 is about 924.9313488038. The cubic root of 855498 is about 94.9306234015.

Subtracting 855498 from its reverse (894558), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 855498 in words is "eight hundred fifty-five thousand, four hundred ninety-eight".