355623 has 16 divisors (see below), whose sum is σ = 529920. Its totient is φ = 210816.

The previous prime is 355609. The next prime is 355633. The reversal of 355623 is 326553.

It is not a de Polignac number, because 355623 - 2⁵ = 355591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 355593 and 355602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355633) 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 15 ways as a sum of consecutive naturals, for example, 786 + ... + 1152.

It is an arithmetic number, because the mean of its divisors is an integer number (33120).

2³⁵⁵⁶²³ is an apocalyptic number.

355623 is a deficient number, since it is larger than the sum of its proper divisors (174297).

355623 is a wasteful number, since it uses less digits than its factorization.

355623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406.

The product of its digits is 2700, while the sum is 24.

The square root of 355623 is about 596.3413452042. The cubic root of 355623 is about 70.8483837300.

The spelling of 355623 in words is "three hundred fifty-five thousand, six hundred twenty-three".