6939216 has 40 divisors (see below), whose sum is σ = 19919360. Its totient is φ = 2312928.

The previous prime is 6939193. The next prime is 6939223. The reversal of 6939216 is 6129396.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a d-powerful number, because it can be written as 6 + 9⁵ + 3 + 9⁷ + 2²¹ + 1 + 6² .

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7600 + ... + 8463.

It is an arithmetic number, because the mean of its divisors is an integer number (497984).

Almost surely, 2^6939216 is an apocalyptic number.

It is an amenable number.

6939216 is an abundant number, since it is smaller than the sum of its proper divisors (12980144).

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

6939216 is a wasteful number, since it uses less digits than its factorization.

6939216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16080 (or 16068 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 6939216 is about 2634.2391690961. The cubic root of 6939216 is about 190.7378144722.

The spelling of 6939216 in words is "six million, nine hundred thirty-nine thousand, two hundred sixteen".