3020309 has 2 divisors, whose sum is σ = 3020310. Its totient is φ = 3020308.

The previous prime is 3020279. The next prime is 3020317. The reversal of 3020309 is 9030203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1697809 + 1322500 = 1303^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 3020309 - 2¹⁶ = 2954773 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510154 + 1510155.

It is an arithmetic number, because the mean of its divisors is an integer number (1510155).

Almost surely, 2^3020309 is an apocalyptic number.

It is an amenable number.

3020309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020309 is an equidigital number, since it uses as much as digits as its factorization.

3020309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 3020309 is about 1737.9036221839. The cubic root of 3020309 is about 144.5496770087.

The spelling of 3020309 in words is "three million, twenty thousand, three hundred nine".