356321 has 8 divisors (see below), whose sum is σ = 411840. Its totient is φ = 301968.

The previous prime is 356311. The next prime is 356327. The reversal of 356321 is 123653.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 356321 - 2¹⁰ = 355297 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 356293 and 356302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530 + ... + 996.

It is an arithmetic number, because the mean of its divisors is an integer number (51480).

2³⁵⁶³²¹ is an apocalyptic number.

It is an amenable number.

356321 is a deficient number, since it is larger than the sum of its proper divisors (55519).

356321 is a wasteful number, since it uses less digits than its factorization.

356321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583.

The product of its digits is 540, while the sum is 20.

The square root of 356321 is about 596.9262936075. The cubic root of 356321 is about 70.8947060554.

Adding to 356321 its reverse (123653), we get a palindrome (479974).

The spelling of 356321 in words is "three hundred fifty-six thousand, three hundred twenty-one".