11985607 has 4 divisors (see below), whose sum is σ = 11992536. Its totient is φ = 11978680.

The previous prime is 11985601. The next prime is 11985647. The reversal of 11985607 is 70658911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11985607 - 2¹⁹ = 11461319 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 (11985601) 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, 1557 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (2998134).

Almost surely, 2^11985607 is an apocalyptic number.

11985607 is a deficient number, since it is larger than the sum of its proper divisors (6929).

11985607 is an equidigital number, since it uses as much as digits as its factorization.

11985607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 11985607 is about 3462.0235412256. The cubic root of 11985607 is about 228.8512792683.

The spelling of 11985607 in words is "eleven million, nine hundred eighty-five thousand, six hundred seven".