6620922 has 96 divisors (see below), whose sum is σ = 19004544. Its totient is φ = 1612800.

The previous prime is 6620899. The next prime is 6620927. The reversal of 6620922 is 2290266.

It is not an unprimeable number, because it can be changed into a prime (6620927) 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, 23422 + ... + 23702.

It is an arithmetic number, because the mean of its divisors is an integer number (197964).

Almost surely, 2^6620922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6620922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9502272).

6620922 is an abundant number, since it is smaller than the sum of its proper divisors (12383622).

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

6620922 is a wasteful number, since it uses less digits than its factorization.

6620922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 6620922 is about 2573.1152325537. The cubic root of 6620922 is about 187.7757436170.

The spelling of 6620922 in words is "six million, six hundred twenty thousand, nine hundred twenty-two".