6217992 has 64 divisors (see below), whose sum is σ = 18849600. Its totient is φ = 1883520.

The previous prime is 6217963. The next prime is 6217993. The reversal of 6217992 is 2997126.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6217993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068 + ... + 3684.

It is an arithmetic number, because the mean of its divisors is an integer number (294525).

Almost surely, 2^6217992 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 6217992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9424800).

6217992 is an abundant number, since it is smaller than the sum of its proper divisors (12631608).

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

6217992 is a wasteful number, since it uses less digits than its factorization.

6217992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 2633 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 6217992 is about 2493.5901828488. The cubic root of 6217992 is about 183.8865873247.

The spelling of 6217992 in words is "six million, two hundred seventeen thousand, nine hundred ninety-two".