90568568 has 8 divisors (see below), whose sum is σ = 169816080. Its totient is φ = 45284280.

The previous prime is 90568567. The next prime is 90568589. The reversal of 90568568 is 86586509.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90568567) 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, 5660528 + ... + 5660543.

It is an arithmetic number, because the mean of its divisors is an integer number (21227010).

Almost surely, 2^90568568 is an apocalyptic number.

It is an amenable number.

90568568 is a deficient number, since it is larger than the sum of its proper divisors (79247512).

90568568 is a wasteful number, since it uses less digits than its factorization.

90568568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321077 (or 11321073 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 90568568 is about 9516.7519669265. The cubic root of 90568568 is about 449.0821918869.

The spelling of 90568568 in words is "ninety million, five hundred sixty-eight thousand, five hundred sixty-eight".