11428969 has 2 divisors, whose sum is σ = 11428970. Its totient is φ = 11428968.

The previous prime is 11428961. The next prime is 11428993. The reversal of 11428969 is 96982411.

11428969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10163344 + 1265625 = 3188^2 + 1125^2 .

It is a cyclic number.

It is not a de Polignac number, because 11428969 - 2³ = 11428961 is a prime.

It is a super-2 number, since 2×11428969² = 261242664805922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11428961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5714484 + 5714485.

It is an arithmetic number, because the mean of its divisors is an integer number (5714485).

Almost surely, 2^11428969 is an apocalyptic number.

It is an amenable number.

11428969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11428969 is an equidigital number, since it uses as much as digits as its factorization.

11428969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 11428969 is about 3380.6758200100. The cubic root of 11428969 is about 225.2521880150.

The spelling of 11428969 in words is "eleven million, four hundred twenty-eight thousand, nine hundred sixty-nine".