355663 has 16 divisors (see below), whose sum is σ = 460800. Its totient is φ = 266400.

The previous prime is 355651. The next prime is 355669. The reversal of 355663 is 366553.

It is a cyclic number.

It is not a de Polignac number, because 355663 - 2¹⁷ = 224591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2313 + ... + 2461.

It is an arithmetic number, because the mean of its divisors is an integer number (28800).

2³⁵⁵⁶⁶³ is an apocalyptic number.

355663 is a deficient number, since it is larger than the sum of its proper divisors (105137).

355663 is a wasteful number, since it uses less digits than its factorization.

355663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its digits is 8100, while the sum is 28.

The square root of 355663 is about 596.3748821002. The cubic root of 355663 is about 70.8510399410.

The spelling of 355663 in words is "three hundred fifty-five thousand, six hundred sixty-three".