90484717 has 2 divisors, whose sum is σ = 90484718. Its totient is φ = 90484716.

The previous prime is 90484711. The next prime is 90484733. The reversal of 90484717 is 71748409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89472681 + 1012036 = 9459^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 90484717 - 2²³ = 82096109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90484717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90484711) 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, 45242358 + 45242359.

It is an arithmetic number, because the mean of its divisors is an integer number (45242359).

Almost surely, 2^90484717 is an apocalyptic number.

It is an amenable number.

90484717 is a deficient number, since it is larger than the sum of its proper divisors (1).

90484717 is an equidigital number, since it uses as much as digits as its factorization.

90484717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 90484717 is about 9512.3455046587. The cubic root of 90484717 is about 448.9435579999.

The spelling of 90484717 in words is "ninety million, four hundred eighty-four thousand, seven hundred seventeen".