11071985 has 8 divisors (see below), whose sum is σ = 13416000. Its totient is φ = 8771184.

The previous prime is 11071979. The next prime is 11072029. The reversal of 11071985 is 58917011.

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 11071985 - 2⁴ = 11071969 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 10235 + ... + 11264.

It is an arithmetic number, because the mean of its divisors is an integer number (1677000).

Almost surely, 2^11071985 is an apocalyptic number.

It is an amenable number.

11071985 is a deficient number, since it is larger than the sum of its proper divisors (2344015).

11071985 is a wasteful number, since it uses less digits than its factorization.

11071985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21607.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 11071985 is about 3327.4592409224. The cubic root of 11071985 is about 222.8820855704.

Adding to 11071985 its reverse (58917011), we get a palindrome (69988996).

The spelling of 11071985 in words is "eleven million, seventy-one thousand, nine hundred eighty-five".