6217920 has 168 divisors, whose sum is σ = 22823424. Its totient is φ = 1548288.

The previous prime is 6217901. The next prime is 6217927. The reversal of 6217920 is 297126.

It is not an unprimeable number, because it can be changed into a prime (6217927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48897 + ... + 49023.

Almost surely, 2^6217920 is an apocalyptic number.

6217920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

6217920 is the 1440-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6217920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11411712).

6217920 is an abundant number, since it is smaller than the sum of its proper divisors (16605504).

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

6217920 is a wasteful number, since it uses less digits than its factorization.

6217920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 6217920 is about 2493.5757457916. The cubic root of 6217920 is about 183.8858775626.

The spelling of 6217920 in words is "six million, two hundred seventeen thousand, nine hundred twenty".