6216930 has 48 divisors (see below), whose sum is σ = 16421184. Its totient is φ = 1631520.

The previous prime is 6216929. The next prime is 6216943. The reversal of 6216930 is 396126.

6216930 = 271² + 272² + ... + 337².

It is a happy number.

6216930 is a `hidden beast` number, since 621 + 6 + 9 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6216894 and 6216903.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5515 + ... + 6545.

It is an arithmetic number, because the mean of its divisors is an integer number (342108).

Almost surely, 2^6216930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6216930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8210592).

6216930 is an abundant number, since it is smaller than the sum of its proper divisors (10204254).

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

6216930 is a wasteful number, since it uses less digits than its factorization.

6216930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 6216930 is about 2493.3772277776. The cubic root of 6216930 is about 183.8761177779.

The spelling of 6216930 in words is "six million, two hundred sixteen thousand, nine hundred thirty".