6947220 has 144 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 1483776.

The previous prime is 6947207. The next prime is 6947221. The reversal of 6947220 is 227496.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6947221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49911 + ... + 50049.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

Almost surely, 2^6947220 is an apocalyptic number.

6947220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6947220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12065760).

6947220 is an abundant number, since it is smaller than the sum of its proper divisors (17184300).

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

6947220 is a wasteful number, since it uses less digits than its factorization.

6947220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 6947220 is about 2635.7579555035. The cubic root of 6947220 is about 190.8111214505.

The spelling of 6947220 in words is "six million, nine hundred forty-seven thousand, two hundred twenty".