90664032 has 24 divisors (see below), whose sum is σ = 237993336. Its totient is φ = 30221312.

The previous prime is 90664019. The next prime is 90664069. The reversal of 90664032 is 23046609.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472113 + ... + 472304.

It is an arithmetic number, because the mean of its divisors is an integer number (9916389).

Almost surely, 2^90664032 is an apocalyptic number.

It is an amenable number.

90664032 is an abundant number, since it is smaller than the sum of its proper divisors (147329304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90664032 is a wasteful number, since it uses less digits than its factorization.

90664032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944430 (or 944422 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 90664032 is about 9521.7662227131. The cubic root of 90664032 is about 449.2399218415.

The spelling of 90664032 in words is "ninety million, six hundred sixty-four thousand, thirty-two".