363855 has 16 divisors (see below), whose sum is σ = 589824. Its totient is φ = 191520.

The previous prime is 363841. The next prime is 363871. The reversal of 363855 is 558363.

It is not a de Polignac number, because 363855 - 2⁹ = 363343 is a prime.

It is a super-2 number, since 2×363855² = 264780922050, which contains 22 as substring.

363855 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1810 + ... + 2000.

It is an arithmetic number, because the mean of its divisors is an integer number (36864).

2³⁶³⁸⁵⁵ is an apocalyptic number.

363855 is a deficient number, since it is larger than the sum of its proper divisors (225969).

363855 is a wasteful number, since it uses less digits than its factorization.

363855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its digits is 10800, while the sum is 30.

The square root of 363855 is about 603.2039456104. The cubic root of 363855 is about 71.3908877417.

The spelling of 363855 in words is "three hundred sixty-three thousand, eight hundred fifty-five".