11061691 has 2 divisors, whose sum is σ = 11061692. Its totient is φ = 11061690.

The previous prime is 11061671. The next prime is 11061719. The reversal of 11061691 is 19616011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11061691 is a prime.

It is a super-2 number, since 2×11061691² = 244722015558962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11061641) 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 as a sum of consecutive naturals, namely, 5530845 + 5530846.

It is an arithmetic number, because the mean of its divisors is an integer number (5530846).

Almost surely, 2^11061691 is an apocalyptic number.

11061691 is a deficient number, since it is larger than the sum of its proper divisors (1).

11061691 is an equidigital number, since it uses as much as digits as its factorization.

11061691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11061691 is about 3325.9120553617. The cubic root of 11061691 is about 222.8129904743.

The spelling of 11061691 in words is "eleven million, sixty-one thousand, six hundred ninety-one".