11028649 has 2 divisors, whose sum is σ = 11028650. Its totient is φ = 11028648.

The previous prime is 11028623. The next prime is 11028659. The reversal of 11028649 is 94682011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7155625 + 3873024 = 2675^2 + 1968^2 .

It is a cyclic number.

It is not a de Polignac number, because 11028649 - 2¹¹ = 11026601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11028649.

It is not a weakly prime, because it can be changed into another prime (11028659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5514324 + 5514325.

It is an arithmetic number, because the mean of its divisors is an integer number (5514325).

Almost surely, 2^11028649 is an apocalyptic number.

It is an amenable number.

11028649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11028649 is an equidigital number, since it uses as much as digits as its factorization.

11028649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 11028649 is about 3320.9409811076. The cubic root of 11028649 is about 222.5909168491.

The spelling of 11028649 in words is "eleven million, twenty-eight thousand, six hundred forty-nine".