11866497 has 4 divisors (see below), whose sum is σ = 15822000. Its totient is φ = 7910996.

The previous prime is 11866487. The next prime is 11866549. The reversal of 11866497 is 79466811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11866497 - 2¹⁹ = 11342209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11866417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1977747 + ... + 1977752.

It is an arithmetic number, because the mean of its divisors is an integer number (3955500).

Almost surely, 2^11866497 is an apocalyptic number.

It is an amenable number.

11866497 is a deficient number, since it is larger than the sum of its proper divisors (3955503).

11866497 is an equidigital number, since it uses as much as digits as its factorization.

11866497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955502.

The product of its digits is 72576, while the sum is 42.

The square root of 11866497 is about 3444.7782221792. The cubic root of 11866497 is about 228.0906649269.

The spelling of 11866497 in words is "eleven million, eight hundred sixty-six thousand, four hundred ninety-seven".