6906630 has 16 divisors (see below), whose sum is σ = 16575984. Its totient is φ = 1841760.

The previous prime is 6906593. The next prime is 6906631. The reversal of 6906630 is 366096.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 230221 = 6906630 / (6 + 9 + 0 + 6 + 6 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6906631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115081 + ... + 115140.

It is an arithmetic number, because the mean of its divisors is an integer number (1035999).

Almost surely, 2^6906630 is an apocalyptic number.

6906630 is an abundant number, since it is smaller than the sum of its proper divisors (9669354).

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

6906630 is a wasteful number, since it uses less digits than its factorization.

6906630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230231.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 6906630 is about 2628.0468032362. The cubic root of 6906630 is about 190.4387827631.

It can be divided in two parts, 69066 and 30, that added together give a palindrome (69096).

The spelling of 6906630 in words is "six million, nine hundred six thousand, six hundred thirty".