855453 has 4 divisors (see below), whose sum is σ = 1140608. Its totient is φ = 570300.

The previous prime is 855431. The next prime is 855461. The reversal of 855453 is 354558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-855453 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142573 + ... + 142578.

It is an arithmetic number, because the mean of its divisors is an integer number (285152).

2⁸⁵⁵⁴⁵³ is an apocalyptic number.

It is an amenable number.

855453 is a deficient number, since it is larger than the sum of its proper divisors (285155).

855453 is a wasteful number, since it uses less digits than its factorization.

855453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285154.

The product of its digits is 12000, while the sum is 30.

The square root of 855453 is about 924.9070223541. The cubic root of 855453 is about 94.9289588923.

The spelling of 855453 in words is "eight hundred fifty-five thousand, four hundred fifty-three".