90539088 has 20 divisors (see below), whose sum is σ = 233892768. Its totient is φ = 30179680.

The previous prime is 90539081. The next prime is 90539101. The reversal of 90539088 is 88093509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90539081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943068 + ... + 943163.

Almost surely, 2^90539088 is an apocalyptic number.

It is an amenable number.

90539088 is an abundant number, since it is smaller than the sum of its proper divisors (143353680).

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

90539088 is a wasteful number, since it uses less digits than its factorization.

90539088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886242 (or 1886236 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 90539088 is about 9515.2029931053. The cubic root of 90539088 is about 449.0334612953.

It can be divided in two parts, 905 and 39088, that added together give a palindrome (39993).

The spelling of 90539088 in words is "ninety million, five hundred thirty-nine thousand, eighty-eight".