10909765 has 4 divisors (see below), whose sum is σ = 13091724. Its totient is φ = 8727808.

The previous prime is 10909763. The next prime is 10909807. The reversal of 10909765 is 56790901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4186116 + 6723649 = 2046^2 + 2593^2 .

It is a cyclic number.

It is not a de Polignac number, because 10909765 - 2¹ = 10909763 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 (10909763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1090972 + ... + 1090981.

It is an arithmetic number, because the mean of its divisors is an integer number (3272931).

Almost surely, 2^10909765 is an apocalyptic number.

It is an amenable number.

10909765 is a deficient number, since it is larger than the sum of its proper divisors (2181959).

10909765 is an equidigital number, since it uses as much as digits as its factorization.

10909765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181958.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 10909765 is about 3302.9933393817. The cubic root of 10909765 is about 221.7882148190.

The spelling of 10909765 in words is "ten million, nine hundred nine thousand, seven hundred sixty-five".