309946801 has 2 divisors, whose sum is σ = 309946802. Its totient is φ = 309946800.

The previous prime is 309946739. The next prime is 309946807. The reversal of 309946801 is 108649903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288184576 + 21762225 = 16976^2 + 4665^2 .

It is a cyclic number.

It is not a de Polignac number, because 309946801 - 2¹¹ = 309944753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (309946807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154973400 + 154973401.

It is an arithmetic number, because the mean of its divisors is an integer number (154973401).

Almost surely, 2^309946801 is an apocalyptic number.

It is an amenable number.

309946801 is a deficient number, since it is larger than the sum of its proper divisors (1).

309946801 is an equidigital number, since it uses as much as digits as its factorization.

309946801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 309946801 is about 17605.3060467576. The cubic root of 309946801 is about 676.7512284278.

The spelling of 309946801 in words is "three hundred nine million, nine hundred forty-six thousand, eight hundred one".