11409765 has 16 divisors (see below), whose sum is σ = 18529728. Its totient is φ = 5993856.

The previous prime is 11409763. The next prime is 11409773. The reversal of 11409765 is 56790411.

11409765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11409765 - 2¹ = 11409763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11409763) 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, 4672 + ... + 6681.

It is an arithmetic number, because the mean of its divisors is an integer number (1158108).

Almost surely, 2^11409765 is an apocalyptic number.

11409765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11409765 is a deficient number, since it is larger than the sum of its proper divisors (7119963).

11409765 is a wasteful number, since it uses less digits than its factorization.

11409765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 11409765 is about 3377.8343653886. The cubic root of 11409765 is about 225.1259541695.

The spelling of 11409765 in words is "eleven million, four hundred nine thousand, seven hundred sixty-five".