90535109 has 8 divisors (see below), whose sum is σ = 103839168. Its totient is φ = 77323680.

The previous prime is 90535099. The next prime is 90535121. The reversal of 90535109 is 90153509.

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

It is a de Polignac number, because none of the positive numbers 2^k-90535109 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 (90535169) 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, 21047 + ... + 24980.

It is an arithmetic number, because the mean of its divisors is an integer number (12979896).

Almost surely, 2^90535109 is an apocalyptic number.

It is an amenable number.

90535109 is a deficient number, since it is larger than the sum of its proper divisors (13304059).

90535109 is a wasteful number, since it uses less digits than its factorization.

90535109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46315.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 90535109 is about 9514.9939043596. The cubic root of 90535109 is about 449.0268831777.

The spelling of 90535109 in words is "ninety million, five hundred thirty-five thousand, one hundred nine".