90417361 has 2 divisors, whose sum is σ = 90417362. Its totient is φ = 90417360.

The previous prime is 90417343. The next prime is 90417377. The reversal of 90417361 is 16371409.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71927361 + 18490000 = 8481^2 + 4300^2 .

It is an emirp because it is prime and its reverse (16371409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90417361 - 2⁵ = 90417329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90417391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45208680 + 45208681.

It is an arithmetic number, because the mean of its divisors is an integer number (45208681).

Almost surely, 2^90417361 is an apocalyptic number.

It is an amenable number.

90417361 is a deficient number, since it is larger than the sum of its proper divisors (1).

90417361 is an equidigital number, since it uses as much as digits as its factorization.

90417361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 90417361 is about 9508.8043938237. The cubic root of 90417361 is about 448.8321338478.

The spelling of 90417361 in words is "ninety million, four hundred seventeen thousand, three hundred sixty-one".