10785609 has 16 divisors (see below), whose sum is σ = 16074240. Its totient is φ = 7147440.

The previous prime is 10785587. The next prime is 10785617. The reversal of 10785609 is 90658701.

It is not a de Polignac number, because 10785609 - 2⁹ = 10785097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10785629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3784 + ... + 5990.

It is an arithmetic number, because the mean of its divisors is an integer number (1004640).

Almost surely, 2^10785609 is an apocalyptic number.

It is an amenable number.

10785609 is a deficient number, since it is larger than the sum of its proper divisors (5288631).

10785609 is a wasteful number, since it uses less digits than its factorization.

10785609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 10785609 is about 3284.1450942369. The cubic root of 10785609 is about 220.9436668386.

The spelling of 10785609 in words is "ten million, seven hundred eighty-five thousand, six hundred nine".