90066719 has 2 divisors, whose sum is σ = 90066720. Its totient is φ = 90066718.

The previous prime is 90066701. The next prime is 90066727. The reversal of 90066719 is 91766009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90066719 - 2¹⁶ = 90001183 is a prime.

It is a super-2 number, since 2×90066719² = 16224027742849922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90066019) 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, 45033359 + 45033360.

It is an arithmetic number, because the mean of its divisors is an integer number (45033360).

Almost surely, 2^90066719 is an apocalyptic number.

90066719 is a deficient number, since it is larger than the sum of its proper divisors (1).

90066719 is an equidigital number, since it uses as much as digits as its factorization.

90066719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 90066719 is about 9490.3487291037. The cubic root of 90066719 is about 448.2511861334.

The spelling of 90066719 in words is "ninety million, sixty-six thousand, seven hundred nineteen".