90304349 has 2 divisors, whose sum is σ = 90304350. Its totient is φ = 90304348.

The previous prime is 90304327. The next prime is 90304351. The reversal of 90304349 is 94340309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76562500 + 13741849 = 8750^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 90304349 - 2¹² = 90300253 is a prime.

Together with 90304351, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_5233676 and since 90304349 and 5233676 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90300349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45152174 + 45152175.

It is an arithmetic number, because the mean of its divisors is an integer number (45152175).

Almost surely, 2^90304349 is an apocalyptic number.

It is an amenable number.

90304349 is a deficient number, since it is larger than the sum of its proper divisors (1).

90304349 is an equidigital number, since it uses as much as digits as its factorization.

90304349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 90304349 is about 9502.8600431660. The cubic root of 90304349 is about 448.6450585480.

The spelling of 90304349 in words is "ninety million, three hundred four thousand, three hundred forty-nine".