855378 has 12 divisors (see below), whose sum is σ = 1853358. Its totient is φ = 285120.

The previous prime is 855377. The next prime is 855391. The reversal of 855378 is 873558.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 567009 + 288369 = 753^2 + 537^2 .

It is a d-powerful number, because it can be written as 8² + 5⁶ + 3² + 5⁶ + 7⁷ + 8³ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (855373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23743 + ... + 23778.

2⁸⁵⁵³⁷⁸ is an apocalyptic number.

855378 is an abundant number, since it is smaller than the sum of its proper divisors (997980).

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

855378 is a wasteful number, since it uses less digits than its factorization.

855378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47529 (or 47526 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 855378 is about 924.8664768495. The cubic root of 855378 is about 94.9261845805.

The spelling of 855378 in words is "eight hundred fifty-five thousand, three hundred seventy-eight".