4088321 has 2 divisors, whose sum is σ = 4088322. Its totient is φ = 4088320.

The previous prime is 4088317. The next prime is 4088323. The reversal of 4088321 is 1238804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4080400 + 7921 = 2020^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 4088321 - 2² = 4088317 is a prime.

Together with 4088323, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4088323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2044160 + 2044161.

It is an arithmetic number, because the mean of its divisors is an integer number (2044161).

Almost surely, 2^4088321 is an apocalyptic number.

It is an amenable number.

4088321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4088321 is an equidigital number, since it uses as much as digits as its factorization.

4088321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 4088321 is about 2021.9596929712. The cubic root of 4088321 is about 159.8999504719.

It can be divided in two parts, 40883 and 21, that added together give a palindrome (40904).

The spelling of 4088321 in words is "four million, eighty-eight thousand, three hundred twenty-one".