90544433 has 8 divisors (see below), whose sum is σ = 103914240. Its totient is φ = 77283360.

The previous prime is 90544429. The next prime is 90544453. The reversal of 90544433 is 33444509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90544433 - 2² = 90544429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90544433.

It is not an unprimeable number, because it can be changed into a prime (90544453) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25388 + ... + 28733.

It is an arithmetic number, because the mean of its divisors is an integer number (12989280).

Almost surely, 2^90544433 is an apocalyptic number.

It is an amenable number.

90544433 is a deficient number, since it is larger than the sum of its proper divisors (13369807).

90544433 is a wasteful number, since it uses less digits than its factorization.

90544433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54367.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 90544433 is about 9515.4838552750. The cubic root of 90544433 is about 449.0422973928.

The spelling of 90544433 in words is "ninety million, five hundred forty-four thousand, four hundred thirty-three".