90416563 has 2 divisors, whose sum is σ = 90416564. Its totient is φ = 90416562.

The previous prime is 90416561. The next prime is 90416587. The reversal of 90416563 is 36561409.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90416563 - 2¹ = 90416561 is a prime.

Together with 90416561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (90416561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45208281 + 45208282.

It is an arithmetic number, because the mean of its divisors is an integer number (45208282).

Almost surely, 2^90416563 is an apocalyptic number.

90416563 is a deficient number, since it is larger than the sum of its proper divisors (1).

90416563 is an equidigital number, since it uses as much as digits as its factorization.

90416563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 90416563 is about 9508.7624326197. The cubic root of 90416563 is about 448.8308134189.

The spelling of 90416563 in words is "ninety million, four hundred sixteen thousand, five hundred sixty-three".