6211985 has 8 divisors (see below), whose sum is σ = 8027880. Its totient is φ = 4587264.

The previous prime is 6211981. The next prime is 6212009. The reversal of 6211985 is 5891126.

6211985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 341056 + 5870929 = 584^2 + 2423^2 .

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 6211985 - 2² = 6211981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6211981) 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, 47720 + ... + 47849.

It is an arithmetic number, because the mean of its divisors is an integer number (1003485).

Almost surely, 2^6211985 is an apocalyptic number.

6211985 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6211985 is a deficient number, since it is larger than the sum of its proper divisors (1815895).

6211985 is a wasteful number, since it uses less digits than its factorization.

6211985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95587.

The product of its digits is 4320, while the sum is 32.

The square root of 6211985 is about 2492.3854035843. The cubic root of 6211985 is about 183.8273526270.

The spelling of 6211985 in words is "six million, two hundred eleven thousand, nine hundred eighty-five".