6216947 has 4 divisors (see below), whose sum is σ = 6782136. Its totient is φ = 5651760.

The previous prime is 6216943. The next prime is 6216961. The reversal of 6216947 is 7496126.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6216947 - 2² = 6216943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6216943) 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, 282578 + ... + 282599.

It is an arithmetic number, because the mean of its divisors is an integer number (1695534).

Almost surely, 2^6216947 is an apocalyptic number.

6216947 is a deficient number, since it is larger than the sum of its proper divisors (565189).

6216947 is a wasteful number, since it uses less digits than its factorization.

6216947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565188.

The product of its digits is 18144, while the sum is 35.

The square root of 6216947 is about 2493.3806368062. The cubic root of 6216947 is about 183.8762853789.

The spelling of 6216947 in words is "six million, two hundred sixteen thousand, nine hundred forty-seven".