11662897 has 2 divisors, whose sum is σ = 11662898. Its totient is φ = 11662896.

The previous prime is 11662877. The next prime is 11662919. The reversal of 11662897 is 79826611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11621281 + 41616 = 3409^2 + 204^2 .

It is a cyclic number.

It is not a de Polignac number, because 11662897 - 2⁷ = 11662769 is a prime.

It is not a weakly prime, because it can be changed into another prime (11662837) 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, 5831448 + 5831449.

It is an arithmetic number, because the mean of its divisors is an integer number (5831449).

Almost surely, 2^11662897 is an apocalyptic number.

It is an amenable number.

11662897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662897 is an equidigital number, since it uses as much as digits as its factorization.

11662897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 11662897 is about 3415.0983880410. The cubic root of 11662897 is about 226.7786401296.

The spelling of 11662897 in words is "eleven million, six hundred sixty-two thousand, eight hundred ninety-seven".