11428659 has 24 divisors (see below), whose sum is σ = 18288192. Its totient is φ = 6819120.

The previous prime is 11428649. The next prime is 11428667. The reversal of 11428659 is 95682411.

It is not a de Polignac number, because 11428659 - 2⁷ = 11428531 is a prime.

It is a super-2 number, since 2×11428659² = 261228493076562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11428609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5772 + ... + 7494.

It is an arithmetic number, because the mean of its divisors is an integer number (762008).

Almost surely, 2^11428659 is an apocalyptic number.

11428659 is a deficient number, since it is larger than the sum of its proper divisors (6859533).

11428659 is a wasteful number, since it uses less digits than its factorization.

11428659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1804 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 11428659 is about 3380.6299708782. The cubic root of 11428659 is about 225.2501514122.

It can be divided in two parts, 1142 and 8659, that added together give a square (9801 = 99²).

The spelling of 11428659 in words is "eleven million, four hundred twenty-eight thousand, six hundred fifty-nine".