90468419 has 2 divisors, whose sum is σ = 90468420. Its totient is φ = 90468418.

The previous prime is 90468397. The next prime is 90468421. The reversal of 90468419 is 91486409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90468419 - 2⁸ = 90468163 is a prime.

It is a super-2 number, since 2×90468419² = 16369069672719122, which contains 22 as substring.

Together with 90468421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90468449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45234209 + 45234210.

It is an arithmetic number, because the mean of its divisors is an integer number (45234210).

Almost surely, 2^90468419 is an apocalyptic number.

90468419 is a deficient number, since it is larger than the sum of its proper divisors (1).

90468419 is an equidigital number, since it uses as much as digits as its factorization.

90468419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 90468419 is about 9511.4887898793. The cubic root of 90468419 is about 448.9166019876.

The spelling of 90468419 in words is "ninety million, four hundred sixty-eight thousand, four hundred nineteen".