90094309 has 2 divisors, whose sum is σ = 90094310. Its totient is φ = 90094308.

The previous prime is 90094307. The next prime is 90094313. The reversal of 90094309 is 90349009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83448225 + 6646084 = 9135^2 + 2578^2 .

It is a cyclic number.

It is not a de Polignac number, because 90094309 - 2¹ = 90094307 is a prime.

Together with 90094307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90094307) 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, 45047154 + 45047155.

It is an arithmetic number, because the mean of its divisors is an integer number (45047155).

Almost surely, 2^90094309 is an apocalyptic number.

It is an amenable number.

90094309 is a deficient number, since it is larger than the sum of its proper divisors (1).

90094309 is an equidigital number, since it uses as much as digits as its factorization.

90094309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 90094309 is about 9491.8021997933. The cubic root of 90094309 is about 448.2969521602.

The spelling of 90094309 in words is "ninety million, ninety-four thousand, three hundred nine".