6690422 has 8 divisors (see below), whose sum is σ = 10061400. Its totient is φ = 3336624.

The previous prime is 6690379. The next prime is 6690427. The reversal of 6690422 is 2240966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (1257675).

Almost surely, 2^6690422 is an apocalyptic number.

6690422 is a deficient number, since it is larger than the sum of its proper divisors (3370978).

6690422 is a wasteful number, since it uses less digits than its factorization.

6690422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6690422 is about 2586.5850073021. The cubic root of 6690422 is about 188.4304870253.

The spelling of 6690422 in words is "six million, six hundred ninety thousand, four hundred twenty-two".