303634949 has 2 divisors, whose sum is σ = 303634950. Its totient is φ = 303634948.

The previous prime is 303634931. The next prime is 303634957. The reversal of 303634949 is 949436303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252969025 + 50665924 = 15905^2 + 7118^2 .

It is a cyclic number.

It is not a de Polignac number, because 303634949 - 2¹² = 303630853 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 (303634049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151817474 + 151817475.

It is an arithmetic number, because the mean of its divisors is an integer number (151817475).

Almost surely, 2^303634949 is an apocalyptic number.

It is an amenable number.

303634949 is a deficient number, since it is larger than the sum of its proper divisors (1).

303634949 is an equidigital number, since it uses as much as digits as its factorization.

303634949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 41.

The square root of 303634949 is about 17425.1240741637. The cubic root of 303634949 is about 672.1258304679.

The spelling of 303634949 in words is "three hundred three million, six hundred thirty-four thousand, nine hundred forty-nine".