90020063 has 16 divisors (see below), whose sum is σ = 107218944. Its totient is φ = 73954080.

The previous prime is 90020039. The next prime is 90020069. The reversal of 90020063 is 36002009.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90020063 - 2¹² = 90015967 is a prime.

It is a super-2 number, since 2×90020063² = 16207223485047938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90020069) 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 in 15 ways as a sum of consecutive naturals, for example, 21281 + ... + 25157.

It is an arithmetic number, because the mean of its divisors is an integer number (6701184).

Almost surely, 2^90020063 is an apocalyptic number.

90020063 is a deficient number, since it is larger than the sum of its proper divisors (17198881).

90020063 is a wasteful number, since it uses less digits than its factorization.

90020063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 90020063 is about 9487.8903345264. The cubic root of 90020063 is about 448.1737723384.

It can be divided in two parts, 9002006 and 3, that added together give a palindrome (9002009).

The spelling of 90020063 in words is "ninety million, twenty thousand, sixty-three".