90544066 has 4 divisors (see below), whose sum is σ = 135816102. Its totient is φ = 45272032.

The previous prime is 90544037. The next prime is 90544079. The reversal of 90544066 is 66044509.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 89397025 + 1147041 = 9455^2 + 1071^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22636015 + ... + 22636018.

Almost surely, 2^90544066 is an apocalyptic number.

90544066 is a deficient number, since it is larger than the sum of its proper divisors (45272036).

90544066 is a wasteful number, since it uses less digits than its factorization.

90544066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45272035.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 90544066 is about 9515.4645708972. The cubic root of 90544066 is about 449.0416906971.

The spelling of 90544066 in words is "ninety million, five hundred forty-four thousand, sixty-six".