321074489 has 2 divisors, whose sum is σ = 321074490. Its totient is φ = 321074488.

The previous prime is 321074473. The next prime is 321074539. The reversal of 321074489 is 984470123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313892089 + 7182400 = 17717^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 321074489 - 2⁴ = 321074473 is a prime.

It is a super-2 number, since 2×321074489² = 206177654973222242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321074449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160537244 + 160537245.

It is an arithmetic number, because the mean of its divisors is an integer number (160537245).

Almost surely, 2^321074489 is an apocalyptic number.

It is an amenable number.

321074489 is a deficient number, since it is larger than the sum of its proper divisors (1).

321074489 is an equidigital number, since it uses as much as digits as its factorization.

321074489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 321074489 is about 17918.5515318622. The cubic root of 321074489 is about 684.7550860461.

The spelling of 321074489 in words is "three hundred twenty-one million, seventy-four thousand, four hundred eighty-nine".