11428767 has 12 divisors (see below), whose sum is σ = 18866640. Its totient is φ = 6530688.

The previous prime is 11428763. The next prime is 11428787. The reversal of 11428767 is 76782411.

It is not a de Polignac number, because 11428767 - 2² = 11428763 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 11 ways as a sum of consecutive naturals, for example, 90642 + ... + 90767.

It is an arithmetic number, because the mean of its divisors is an integer number (1572220).

Almost surely, 2^11428767 is an apocalyptic number.

11428767 is a deficient number, since it is larger than the sum of its proper divisors (7437873).

11428767 is a wasteful number, since it uses less digits than its factorization.

11428767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181422 (or 181419 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 11428767 is about 3380.6459441947. The cubic root of 11428767 is about 225.2508609425.

The spelling of 11428767 in words is "eleven million, four hundred twenty-eight thousand, seven hundred sixty-seven".