6622900 has 36 divisors (see below), whose sum is σ = 14533792. Its totient is φ = 2619360.

The previous prime is 6622897. The next prime is 6622907. The reversal of 6622900 is 92266.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9979 + ... + 10621.

Almost surely, 2^6622900 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 6622900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7266896).

6622900 is an abundant number, since it is smaller than the sum of its proper divisors (7910892).

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

6622900 is a wasteful number, since it uses less digits than its factorization.

6622900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 6622900 is about 2573.4995628521. The cubic root of 6622900 is about 187.7944410854.

The spelling of 6622900 in words is "six million, six hundred twenty-two thousand, nine hundred".