90009773 has 8 divisors (see below), whose sum is σ = 102988992. Its totient is φ = 77060736.

The previous prime is 90009769. The next prime is 90009779. The reversal of 90009773 is 37790009.

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

It is a cyclic number.

It is not a de Polignac number, because 90009773 - 2² = 90009769 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90009779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740 + ... + 13437.

It is an arithmetic number, because the mean of its divisors is an integer number (12873624).

Almost surely, 2^90009773 is an apocalyptic number.

It is an amenable number.

90009773 is a deficient number, since it is larger than the sum of its proper divisors (12979219).

90009773 is a wasteful number, since it uses less digits than its factorization.

90009773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15091.

The product of its (nonzero) digits is 11907, while the sum is 35.

The square root of 90009773 is about 9487.3480488491. The cubic root of 90009773 is about 448.1566950940.

The spelling of 90009773 in words is "ninety million, nine thousand, seven hundred seventy-three".