90000088 has 8 divisors (see below), whose sum is σ = 168750180. Its totient is φ = 45000040.

The previous prime is 90000083. The next prime is 90000089. The reversal of 90000088 is 88000009.

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 (90000083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5624998 + ... + 5625013.

Almost surely, 2^90000088 is an apocalyptic number.

It is an amenable number.

90000088 is a deficient number, since it is larger than the sum of its proper divisors (78750092).

90000088 is a wasteful number, since it uses less digits than its factorization.

90000088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11250017 (or 11250013 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 90000088 is about 9486.8376185112. The cubic root of 90000088 is about 448.1406207163.

The spelling of 90000088 in words is "ninety million, eighty-eight", and thus it is an aban number and an uban number.