6626730 has 64 divisors (see below), whose sum is σ = 17791488. Its totient is φ = 1565760.

The previous prime is 6626729. The next prime is 6626743. The reversal of 6626730 is 376266.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13957 + ... + 14423.

It is an arithmetic number, because the mean of its divisors is an integer number (277992).

Almost surely, 2^6626730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6626730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8895744).

6626730 is an abundant number, since it is smaller than the sum of its proper divisors (11164758).

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

6626730 is a wasteful number, since it uses less digits than its factorization.

6626730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 6626730 is about 2574.2435782187. The cubic root of 6626730 is about 187.8306343998.

It can be divided in two parts, 66 and 26730, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 6626730 in words is "six million, six hundred twenty-six thousand, seven hundred thirty".