6291216 has 40 divisors (see below), whose sum is σ = 18059360. Its totient is φ = 2096928.

The previous prime is 6291211. The next prime is 6291217. The reversal of 6291216 is 6121926.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 6291216.

It is not an unprimeable number, because it can be changed into a prime (6291211) 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, 6850 + ... + 7713.

It is an arithmetic number, because the mean of its divisors is an integer number (451484).

Almost surely, 2^6291216 is an apocalyptic number.

It is an amenable number.

6291216 is an abundant number, since it is smaller than the sum of its proper divisors (11768144).

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

6291216 is a wasteful number, since it uses less digits than its factorization.

6291216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14580 (or 14568 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 6291216 is about 2508.2296545572. The cubic root of 6291216 is about 184.6055975581.

The spelling of 6291216 in words is "six million, two hundred ninety-one thousand, two hundred sixteen".