90330664 has 8 divisors (see below), whose sum is σ = 169370010. Its totient is φ = 45165328.

The previous prime is 90330661. The next prime is 90330671. The reversal of 90330664 is 46603309.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 28708164 = 7850^2 + 5358^2 .

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

It is not an unprimeable number, because it can be changed into a prime (90330661) 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, 5645659 + ... + 5645674.

Almost surely, 2^90330664 is an apocalyptic number.

It is an amenable number.

90330664 is a deficient number, since it is larger than the sum of its proper divisors (79039346).

90330664 is a wasteful number, since it uses less digits than its factorization.

90330664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11291339 (or 11291335 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 90330664 is about 9504.2445254739. The cubic root of 90330664 is about 448.6886332236.

The spelling of 90330664 in words is "ninety million, three hundred thirty thousand, six hundred sixty-four".