11428679 has 4 divisors (see below), whose sum is σ = 11440440. Its totient is φ = 11416920.

The previous prime is 11428673. The next prime is 11428699. The reversal of 11428679 is 97682411.

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

It is not a de Polignac number, because 11428679 - 2⁸ = 11428423 is a prime.

It is a super-2 number, since 2×11428679² = 261229407370082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428673) 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 3 ways as a sum of consecutive naturals, for example, 4277 + ... + 6414.

It is an arithmetic number, because the mean of its divisors is an integer number (2860110).

Almost surely, 2^11428679 is an apocalyptic number.

11428679 is a deficient number, since it is larger than the sum of its proper divisors (11761).

11428679 is a wasteful number, since it uses less digits than its factorization.

11428679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11760.

The product of its digits is 24192, while the sum is 38.

The square root of 11428679 is about 3380.6329289055. The cubic root of 11428679 is about 225.2502828070.

The spelling of 11428679 in words is "eleven million, four hundred twenty-eight thousand, six hundred seventy-nine".