9090665 has 8 divisors (see below), whose sum is σ = 11550600. Its totient is φ = 6844672.

The previous prime is 9090649. The next prime is 9090671. The reversal of 9090665 is 5660909.

9090665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2036329 + 7054336 = 1427^2 + 2656^2 .

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 9090665 - 2⁴ = 9090649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53390 + ... + 53559.

It is an arithmetic number, because the mean of its divisors is an integer number (1443825).

Almost surely, 2^9090665 is an apocalyptic number.

It is an amenable number.

9090665 is a deficient number, since it is larger than the sum of its proper divisors (2459935).

9090665 is a wasteful number, since it uses less digits than its factorization.

9090665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106971.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 9090665 is about 3015.0729676079. The cubic root of 9090665 is about 208.7045343033.

The spelling of 9090665 in words is "nine million, ninety thousand, six hundred sixty-five".