90085063 has 2 divisors, whose sum is σ = 90085064. Its totient is φ = 90085062.

The previous prime is 90085033. The next prime is 90085081. The reversal of 90085063 is 36058009.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90085063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90085003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45042531 + 45042532.

It is an arithmetic number, because the mean of its divisors is an integer number (45042532).

Almost surely, 2^90085063 is an apocalyptic number.

90085063 is a deficient number, since it is larger than the sum of its proper divisors (1).

90085063 is an equidigital number, since it uses as much as digits as its factorization.

90085063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 90085063 is about 9491.3151354278. The cubic root of 90085063 is about 448.2816160254.

The spelling of 90085063 in words is "ninety million, eighty-five thousand, sixty-three".