307830349 has 2 divisors, whose sum is σ = 307830350. Its totient is φ = 307830348.

The previous prime is 307830311. The next prime is 307830353. The reversal of 307830349 is 943038703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304258249 + 3572100 = 17443^2 + 1890^2 .

It is a cyclic number.

It is not a de Polignac number, because 307830349 - 2¹⁷ = 307699277 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (307830049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153915174 + 153915175.

It is an arithmetic number, because the mean of its divisors is an integer number (153915175).

Almost surely, 2^307830349 is an apocalyptic number.

It is an amenable number.

307830349 is a deficient number, since it is larger than the sum of its proper divisors (1).

307830349 is an equidigital number, since it uses as much as digits as its factorization.

307830349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 307830349 is about 17545.0947275870. The cubic root of 307830349 is about 675.2073247001.

The spelling of 307830349 in words is "three hundred seven million, eight hundred thirty thousand, three hundred forty-nine".