11428765 has 8 divisors (see below), whose sum is σ = 13754880. Its totient is φ = 9116112.

The previous prime is 11428763. The next prime is 11428787. The reversal of 11428765 is 56782411.

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 11428765 - 2¹ = 11428763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11428765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428763) 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, 1389 + ... + 4978.

It is an arithmetic number, because the mean of its divisors is an integer number (1719360).

Almost surely, 2^11428765 is an apocalyptic number.

It is an amenable number.

11428765 is a deficient number, since it is larger than the sum of its proper divisors (2326115).

11428765 is an equidigital number, since it uses as much as digits as its factorization.

11428765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731.

The product of its digits is 13440, while the sum is 34.

The square root of 11428765 is about 3380.6456483932. The cubic root of 11428765 is about 225.2508478031.

The spelling of 11428765 in words is "eleven million, four hundred twenty-eight thousand, seven hundred sixty-five".