353623 has 4 divisors (see below), whose sum is σ = 355600. Its totient is φ = 351648.

The previous prime is 353621. The next prime is 353627. The reversal of 353623 is 326353.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 353623 - 2¹ = 353621 is a prime.

It is a super-2 number, since 2×353623² = 250098452258, which contains 22 as substring.

It is a Duffinian number.

353623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 353594 and 353603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353621) 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, 690 + ... + 1087.

It is an arithmetic number, because the mean of its divisors is an integer number (88900).

2³⁵³⁶²³ is an apocalyptic number.

353623 is a deficient number, since it is larger than the sum of its proper divisors (1977).

353623 is a wasteful number, since it uses less digits than its factorization.

353623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its digits is 1620, while the sum is 22.

The square root of 353623 is about 594.6620889211. The cubic root of 353623 is about 70.7153184412.

Adding to 353623 its reverse (326353), we get a palindrome (679976).

The spelling of 353623 in words is "three hundred fifty-three thousand, six hundred twenty-three".