5911986 has 8 divisors (see below), whose sum is σ = 11823984. Its totient is φ = 1970660.

The previous prime is 5911981. The next prime is 5911987. The reversal of 5911986 is 6891195.

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

5911986 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (5911981) 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, 492660 + ... + 492671.

It is an arithmetic number, because the mean of its divisors is an integer number (1477998).

Almost surely, 2^5911986 is an apocalyptic number.

5911986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5911986 is a wasteful number, since it uses less digits than its factorization.

5911986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985336.

The product of its digits is 19440, while the sum is 39.

The square root of 5911986 is about 2431.4575875388. The cubic root of 5911986 is about 180.8191676040.

The spelling of 5911986 in words is "five million, nine hundred eleven thousand, nine hundred eighty-six".