6691422 has 8 divisors (see below), whose sum is σ = 13382856. Its totient is φ = 2230472.

The previous prime is 6691411. The next prime is 6691423. The reversal of 6691422 is 2241966.

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

6691422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6691422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6691423) 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, 557613 + ... + 557624.

It is an arithmetic number, because the mean of its divisors is an integer number (1672857).

Almost surely, 2^6691422 is an apocalyptic number.

6691422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6691422 is a wasteful number, since it uses less digits than its factorization.

6691422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115242.

The product of its digits is 5184, while the sum is 30.

The square root of 6691422 is about 2586.7783051510. The cubic root of 6691422 is about 188.4398746294.

The spelling of 6691422 in words is "six million, six hundred ninety-one thousand, four hundred twenty-two".