11021697 has 8 divisors (see below), whose sum is σ = 16328480. Its totient is φ = 7347780.

The previous prime is 11021693. The next prime is 11021707. The reversal of 11021697 is 79612011.

It is not a de Polignac number, because 11021697 - 2² = 11021693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 408211 = 11021697 / (1 + 1 + 0 + 2 + 1 + 6 + 9 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021697.

It is not an unprimeable number, because it can be changed into a prime (11021693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204079 + ... + 204132.

It is an arithmetic number, because the mean of its divisors is an integer number (2041060).

Almost surely, 2^11021697 is an apocalyptic number.

It is an amenable number.

11021697 is a deficient number, since it is larger than the sum of its proper divisors (5306783).

11021697 is an equidigital number, since it uses as much as digits as its factorization.

11021697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408220 (or 408214 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 11021697 is about 3319.8941248178. The cubic root of 11021697 is about 222.5441363438.

The spelling of 11021697 in words is "eleven million, twenty-one thousand, six hundred ninety-seven".