11660287 has 8 divisors (see below), whose sum is σ = 12207456. Its totient is φ = 11116512.

The previous prime is 11660269. The next prime is 11660329. The reversal of 11660287 is 78206611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11660287 - 2¹¹ = 11658239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660227) 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, 8493 + ... + 9769.

It is an arithmetic number, because the mean of its divisors is an integer number (1525932).

Almost surely, 2^11660287 is an apocalyptic number.

11660287 is a deficient number, since it is larger than the sum of its proper divisors (547169).

11660287 is a wasteful number, since it uses less digits than its factorization.

11660287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 11660287 is about 3414.7162400410. The cubic root of 11660287 is about 226.7617221944.

Adding to 11660287 its reverse (78206611), we get a palindrome (89866898).

The spelling of 11660287 in words is "eleven million, six hundred sixty thousand, two hundred eighty-seven".