3231329 has 2 divisors, whose sum is σ = 3231330. Its totient is φ = 3231328.

The previous prime is 3231313. The next prime is 3231331. The reversal of 3231329 is 9231323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 719104 = 1585^2 + 848^2 .

It is a cyclic number.

It is not a de Polignac number, because 3231329 - 2⁴ = 3231313 is a prime.

Together with 3231331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3231379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615664 + 1615665.

It is an arithmetic number, because the mean of its divisors is an integer number (1615665).

Almost surely, 2^3231329 is an apocalyptic number.

It is an amenable number.

3231329 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231329 is an equidigital number, since it uses as much as digits as its factorization.

3231329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 23.

The square root of 3231329 is about 1797.5897752268. The cubic root of 3231329 is about 147.8406032871.

The spelling of 3231329 in words is "three million, two hundred thirty-one thousand, three hundred twenty-nine".