392321 has 2 divisors, whose sum is σ = 392322. Its totient is φ = 392320.

The previous prime is 392299. The next prime is 392333. The reversal of 392321 is 123293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384400 + 7921 = 620^2 + 89^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-392321 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 392293 and 392302.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 392321.

It is not a weakly prime, because it can be changed into another prime (392351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196160 + 196161.

It is an arithmetic number, because the mean of its divisors is an integer number (196161).

2³⁹²³²¹ is an apocalyptic number.

It is an amenable number.

392321 is a deficient number, since it is larger than the sum of its proper divisors (1).

392321 is an equidigital number, since it uses as much as digits as its factorization.

392321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 20.

The square root of 392321 is about 626.3553304635. The cubic root of 392321 is about 73.2060855721.

The spelling of 392321 in words is "three hundred ninety-two thousand, three hundred twenty-one".