6699722 has 4 divisors (see below), whose sum is σ = 10049586. Its totient is φ = 3349860.

The previous prime is 6699703. The next prime is 6699727. The reversal of 6699722 is 2279966.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3463321 + 3236401 = 1861^2 + 1799^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6699722.

It is not an unprimeable number, because it can be changed into a prime (6699727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1674929 + ... + 1674932.

Almost surely, 2^6699722 is an apocalyptic number.

6699722 is a deficient number, since it is larger than the sum of its proper divisors (3349864).

6699722 is a wasteful number, since it uses less digits than its factorization.

6699722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349863.

The product of its digits is 81648, while the sum is 41.

The square root of 6699722 is about 2588.3821201670. The cubic root of 6699722 is about 188.5177556700.

The spelling of 6699722 in words is "six million, six hundred ninety-nine thousand, seven hundred twenty-two".