90888066 has 36 divisors (see below), whose sum is σ = 200383638. Its totient is φ = 29767392.

The previous prime is 90888053. The next prime is 90888097. The reversal of 90888066 is 66088809.

It can be written as a sum of positive squares in only one way, i.e., 75325041 + 15563025 = 8679^2 + 3945^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 345451 + ... + 345713.

Almost surely, 2^90888066 is an apocalyptic number.

90888066 is an abundant number, since it is smaller than the sum of its proper divisors (109495572).

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

90888066 is a wasteful number, since it uses less digits than its factorization.

90888066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 90888066 is about 9533.5232731661. The cubic root of 90888066 is about 449.6096466704.

The spelling of 90888066 in words is "ninety million, eight hundred eighty-eight thousand, sixty-six".