6961220 has 48 divisors (see below), whose sum is σ = 17592960. Its totient is φ = 2260224.

The previous prime is 6961187. The next prime is 6961231. The reversal of 6961220 is 221696.

It is a self number, because there is not a number n which added to its sum of digits gives 6961220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1352 + ... + 3968.

It is an arithmetic number, because the mean of its divisors is an integer number (366520).

Almost surely, 2^6961220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6961220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8796480).

6961220 is an abundant number, since it is smaller than the sum of its proper divisors (10631740).

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

6961220 is a wasteful number, since it uses less digits than its factorization.

6961220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 6961220 is about 2638.4124014263. The cubic root of 6961220 is about 190.9392092934.

The spelling of 6961220 in words is "six million, nine hundred sixty-one thousand, two hundred twenty".